158592domain: NAppears in sequencesa(n) = (n+1)!*Sum_{k=0..n} C(2k, k)*B(n-k), where B(n) is n-th Bernoulli number.at n=5A061053Expansion of e.g.f. 1/(1 + LambertW(x*log(1-x)^3)).at n=8A392917