A135648 Expansion of a rational g.f., see formula.

1, 1922, 3640691, 6895473332, 13060026530591, 24735690249234458, 46849397332052003953, 88732758546906507089208, 168059844687840924491185218, 318305345838770710986638404668, 602870325018631726608694781154978, 1141836395585288490196867923237849768

Offset

1,2

Links

Table of n, a(n) for n=1..12.

Formula

G.f.: 1/(x^256*p(1/x)) where p(x)=(-969 - 1894*x^15 + x^16)*(-1 - 3*x^15 + x^16)^4*(-1 - 2*x^15 + x^16)^5*(-1 - x^15 + x^16)^6.

Crossrefs

Sequence in context: A157448 A035768 A107564 * A363821 A255867 A326018

Adjacent sequences: A135645 A135646 A135647 * A135649 A135650 A135651

Keyword

nonn,easy,less

Author

Roger L. Bagula, Jan 31 2008

Extensions

Meaningful name from Joerg Arndt, Dec 26 2022

Status

approved