Expansion of g^2/(1 - x*g^2)^3, where g = 1+x*g^4 is the g.f. of A002293.
A391200
Expansion of g^2/(1 - x*g^2)^3, where g = 1+x*g^4 is the g.f. of A002293.
Terms
- a(0) =1a(1) =5a(2) =27a(3) =164a(4) =1089a(5) =7704a(6) =57047a(7) =437002a(8) =3435777a(9) =27571378a(10) =224936412a(11) =1860175548a(12) =15558737618a(13) =131392930851
External references
- oeis: A391200