249250
domain: N
Appears in sequences
- Number of 5-alternating permutations.at n=14A181936
- Coefficient of x of the OmegaPolynomials (A318146), T(n, k) = [x] P(n, k) with n>=1 and k>=0, square array read by ascending antidiagonals.at n=31A318253
- a(n) = [x] OmegaPolynomial(5, n). OmegaPolynomials are defined in A318146.at n=3A318258
- Expansion of e.g.f. exp(x - x^5/120).at n=15A351931