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Largest prime factor of 78557*2^n + 1
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5283a1684c
Update.
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2 years ago |
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Largest prime factor of A020549(n) = (n!)^2 + 1
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8fc34c482e
Update.
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2 years ago |
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Least positive number k such that sigma(k) = n * sigma(k+1)
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de60660346
new file: oeis-research/Seiichi Manyama/Least positive number k such that sigma(k) = n * sigma(k+1)/comb.pl
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3 years ago |
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Least positive number k such that sigma(k+1) = n * sigma(k)
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de60660346
new file: oeis-research/Seiichi Manyama/Least positive number k such that sigma(k) = n * sigma(k+1)/comb.pl
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3 years ago |
trizen
5283a1684c
Update.