A086635 Row sums of triangle A086634.

1, 2, 5, 24, 137, 833, 5301, 34946, 236640, 1636524, 11510571, 82088700, 592216248, 4314349823, 31694295852, 234526323852, 1746433537565, 13077886182237, 98418652886229, 743950197805239

Offset

0,2

Links

Table of n, a(n) for n=0..19.

Formula

G.f.: A(x) = (1+x) - x^2*(1+x)^3 + x*A(x)^3.

Crossrefs

Cf. A086634 (triangle).

Sequence in context: A020022 A026073 A054131 * A020124 A012249 A303108

Adjacent sequences: A086632 A086633 A086634 * A086636 A086637 A086638

Keyword

nonn

Author

Paul D. Hanna, Jul 25 2003

Status

approved