Expansion of e.g.f. exp(g^3 - 1), where g = 1+x*g^4 is the g.f. of A002293.
A391549
Expansion of e.g.f. exp(g^3 - 1), where g = 1+x*g^4 is the g.f. of A002293.
Terms
- a(0) =1a(1) =3a(2) =39a(3) =843a(4) =25641a(5) =1008783a(6) =48784599a(7) =2802490407a(8) =186608164689
External references
- oeis: A391549