2933074

Appears in sequences

• Coefficients of polynomials related to ordered set partitions. Triangle read by rows, T_{m}(n, k) for m = 2 and 0 <= k <= n.at n=22A326477
• Expansion of e.g.f. exp(x) / (2 - cosh(x)).at n=11A327034
• E.g.f.: -log(2 - cosh(x)) (even powers only).at n=6A331978
• E.g.f.: (exp(-x) - exp(x) - 2)/(exp(-x) + exp(x) - 4).at n=11A375381