Expansion of g^2/(1 + x^3*g^4), where g = 1+x*g^3 is the g.f. of A001764.
A391302
Expansion of g^2/(1 + x^3*g^4), where g = 1+x*g^3 is the g.f. of A001764.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =29a(4) =137a(5) =695a(6) =3695a(7) =20308a(8) =114436a(9) =657550a(10) =3837986a(11) =22692014a(12) =135619965a(13) =817991662a(14) =4972692185a(15) =30437169640a(16) =187422668362
External references
- oeis: A391302