trizen fc5a0aa028 Update. 7 månader sedan
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3-powerful numbers = sum of two coprime 3-powerful numbers 5818c41205 new file: "oeis-research/Felix Fr\303\266hlich/3-powerful numbers = sum of two coprime 3-powerful numbers/check.sf" 3 år sedan
Both truncatable primes 4d085c9032 Remove commit history 3 år sedan
Composite k such that binomial(2k, k) = 2 that are not squares or cubes of primes 4d085c9032 Remove commit history 3 år sedan
Felix truncatable primes 4d085c9032 Remove commit history 3 år sedan
Smallest base-n Fermat pseudoprime with n distinct prime factors df529e2f1d Update. 1 år sedan
Square array A(n, k) read by antidiagonals downwards: smallest base-n Fermat pseudoprime with k distinct prime factors for k, n >= 2 fc5a0aa028 Update. 7 månader sedan