Expansion of g/(1 - x^3*g^2), where g = 1+x*g^3 is the g.f. of A001764.

A391061

Expansion of g/(1 - x^3*g^2), where g = 1+x*g^3 is the g.f. of A001764.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =13a(4) =58a(5) =285a(6) =1484a(7) =8030a(8) =44716a(9) =254558a(10) =1474685a(11) =8665233a(12) =51520014a(13) =309373149a(14) =1873582095a(15) =11430018858a(16) =70178045693a(17) =433315430231

External references