Expansion of g/(1 - x^3*g^4), where g = 1+x*g^4 is the g.f. of A002293.
A391101
Expansion of g/(1 - x^3*g^4), where g = 1+x*g^4 is the g.f. of A002293.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =23a(4) =145a(5) =999a(6) =7285a(7) =55254a(8) =431430a(9) =3444731a(10) =27995735a(11) =230823083a(12) =1925961450a(13) =16232319212a(14) =137987886985
External references
- oeis: A391101