1226592271

Appears in sequences

• Least prime p such that B_{2*n} == 0 (mod p) but there is no k < n with B_{2k} == 0 (mod p), or 1 if such a prime p does not exist, where B_m denotes the m-th Bernoulli number.at n=31A242193
• Smallest prime factor of |A001067(n)|, or 1 if |A001067(n)| = 1.at n=31A281331
• The least prime factor of the numerator of Bernoulli(2*n), or 1 if the numerator is 1.at n=32A332300