Expansion of g/(1 - x^3*g), where g = 1+x*g^3 is the g.f. of A001764.
A391059
Expansion of g/(1 - x^3*g), where g = 1+x*g^3 is the g.f. of A001764.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =13a(4) =57a(5) =280a(6) =1459a(7) =7898a(8) =44003a(9) =250607a(10) =1452310a(11) =8536261a(12) =50765639a(13) =304906310a(14) =1846857148a(15) =11268698768a(16) =69196763137a(17) =427306324391
External references
- oeis: A391059