Expansion of e.g.f. exp(g^4 - 1), where g = 1+x*g^4 is the g.f. of A002293.
A391550
Expansion of e.g.f. exp(g^4 - 1), where g = 1+x*g^4 is the g.f. of A002293.
Terms
- a(0) =1a(1) =4a(2) =60a(3) =1432a(4) =46984a(5) =1964544a(6) =99929056a(7) =5991976960a(8) =414015246528
External references
- oeis: A391550