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12 June
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4d085c9032
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3 years ago |
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12 May
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4d085c9032
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3 years ago |
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13 June
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4d085c9032
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3 years ago |
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13 May
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3 years ago |
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15 May
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ddbb6ebad1
modified: oeis-autoload/oeis.pl -- support for tables
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2 years ago |
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17 May
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7fba720525
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1 year ago |
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18 May
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3 years ago |
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2 July 2019
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3 years ago |
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22 July - comments
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3 years ago |
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24 May
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3 years ago |
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9 June
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3 years ago |
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Conjecture 13 July 2022
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e25af477b0
new file: oeis-research/Derek Orr/Least prime p such that p^n and p^n+1 have the same number of prime factors (counted with multiplicity) or 0 if no such number exists/simple_prog.sf
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1 year ago |
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Divisibility of numerators of harmonic numbers
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3 years ago |
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Factor 2n
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3 years ago |
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Least k > 1 such that all divisors d of (k^(2n+1)+1) over (k+1) satisfy d == 1 (mod 2n+1)
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a38dc6d971
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1 year ago |
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Non-residue pseudoprimes
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f6c160affc
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3 years ago |
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Primes sum of squares
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3 years ago |
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Smallest k such that 2^(2^n+1)-1 + 2^k is prime, or -1 if no such k exists
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986b4f84f2
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4 months ago |
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Super-poulet conjecture
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3 years ago |
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Thomasz a and b sequences
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3 years ago |
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Tomasz base = 5 primes
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3 years ago |
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Tomasz mod 1 divisors
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1 year ago |
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Tomasz new sequences
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3 years ago |
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Tomasz p+1 semiprimes
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Tomasz rad p+1 pseudoprimes
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Tomasz rad p-1 pseudoprimes
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3 years ago |
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Tomasz squarefree conjecture
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3 years ago |
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Tomazs znorder primes
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3 years ago |
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a(n) is the smallest b > 0 such that b^(2n) + 1 has all prime divisors p == 1 (mod 2n)
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a38dc6d971
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1 year ago |
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a(n) is the smallest k with n prime factors such that p^k == p (mod k) for every prime p dividing k
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a38dc6d971
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1 year ago |
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a(n) is the smallest number k with n prime factors such that p + div(k,p) is prime for every prime p | k
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c6ec26b5eb
new file: oeis-research/Bernard Schott/a(n) is the largest prime < 10^n obtained with the longest sum of consecutive primes/prog_fast.pl
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3 years ago |
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a(n) is the smallest odd b > 1 such that (b^(2n) + 1) over 2 has all prime divisors p == 1 (mod 2n)
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a38dc6d971
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1 year ago |
