947520

Appears in sequences

• Expansion of e.g.f. cosh(tan(x)*sinh(x)) (only even powers).at n=5A009165
• Triangle T(n, k) = 1 - (-1)^n*(n! + 1) + A176013(n, k) + A176013(n, n-k+1) read by rows.at n=31A176021
• Triangle T(n, k) = 1 - (-1)^n*(n! + 1) + A176013(n, k) + A176013(n, n-k+1) read by rows.at n=32A176021
• T(n,k) is the number of connected labeled posets with n elements and rank k: triangle read by rows.at n=34A342501