36953domain: NAppears in sequencesa(n) = (4*n^3 - 9*n^2 + 11*n + 3)/3.at n=31A161707Expansion of e.g.f. exp(x*exp(-x*exp(-x))).at n=8A362275Expansion of (1/x) * Series_Reversion( x * (1-x) * (1-x-x^3)^2 ).at n=6A368966