195584
domain: N
Appears in sequences
- Number of signed permutations of length 2n invariant under D and D'bar.at n=8A193778
- Numbers k such that the smallest m such that k | psi(m) is even, psi = A002322.at n=19A341886
- a(n) = A341886(n)/2; numbers k such that A307437(k) is even.at n=35A341887
- Expansion of (1/x) * Series_Reversion( x*(1-x)^5/(1-x+x^2) ).at n=6A387840