G.f.: 1/(1-x) = Sum_{n>=0} a(n)*x^n/(1+x)^(n^2+n).

A182951

G.f.: 1/(1-x) = Sum_{n>=0} a(n)*x^n/(1+x)^(n^2+n).

Terms

    a(0) =1a(1) =1a(2) =3a(3) =16a(4) =134a(5) =1596a(6) =25193a(7) =501236a(8) =12118038a(9) =346373740a(10) =11460810227a(11) =431732603292

External references