Expansion of e.g.f. exp(g^2 - 1), where g = 1+x*g^3 is the g.f. of A001764.
A391545
Expansion of e.g.f. exp(g^2 - 1), where g = 1+x*g^3 is the g.f. of A001764.
Terms
- a(0) =1a(1) =2a(2) =18a(3) =272a(4) =5812a(5) =161112a(6) =5500744a(7) =223415936a(8) =10529259024a(9) =565135093664
External references
- oeis: A391545