8855040domain: NAppears in sequencesExpansion of log(1 + sinh(x)/exp(x)).at n=9A009362Expansion of e.g.f.: 2*exp(2*x) / (3 - exp(2*x)).at n=8A123227Triangle T(n,k), n >= 0, 0 <= k <= n, read by rows, where T(n,k) = (-1)^k * [m^k] (1/2^(m-n)) * Sum_{k=0..m} k^n * (-1)^m * 3^(m-k) * binomial(m,k).at n=46A383149