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

A387675

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

Terms

    a(0) =1a(1) =1a(2) =2a(3) =10a(4) =49a(5) =246a(6) =1296a(7) =7075a(8) =39643a(9) =226702a(10) =1317861a(11) =7764889a(12) =46268870a(13) =278346596a(14) =1688259419a(15) =10312826475a(16) =63389602420a(17) =391781401090

External references