Expansion of g^2/(1 + x^3*g^3), where g = 1+x*g^3 is the g.f. of A001764.
A391300
Expansion of g^2/(1 + x^3*g^3), where g = 1+x*g^3 is the g.f. of A001764.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =29a(4) =138a(5) =703a(6) =3747a(7) =20626a(8) =116351a(9) =669064a(10) =3907442a(11) =23113071a(12) =138186281a(13) =833716631a(14) =5069534022a(15) =31036381679a(16) =191146470099
External references
- oeis: A391300