177078

Appears in sequences

• Numbers k such that 87*2^k+1 is prime.at n=39A032393
• Triangle read by rows: T(n,k) is the number of permutations of an n-set having k cycles of size > 1 (0<=k<=floor(n/2)).at n=27A136394
• Number of permutations of [n] having exactly two nontrivial cycles.at n=5A289950