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

A391298

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

Terms

    a(0) =1a(1) =2a(2) =7a(3) =29a(4) =139a(5) =710a(6) =3789a(7) =20869a(8) =117760a(9) =677305a(10) =3956115a(11) =23403227a(12) =139930722a(13) =844284492a(14) =5133991396a(15) =31431929055a(16) =193587027548

External references