A097096 Row sums of triangle A097094 and also equals the self-convolution of A097097 (antidiagonal sums of triangle A097094).

1, 2, 5, 10, 22, 40, 77, 136, 250, 428, 744, 1248, 2114, 3476, 5738, 9304, 15119, 24210, 38755, 61454, 97349, 153030, 240170, 374890, 584176, 906288, 1403413, 2166080, 3337336, 5127952, 7866176, 12040624, 18402370, 28074484, 42770578, 65062212

Offset

0,2

Links

Table of n, a(n) for n=0..35.

Formula

G.f.: A(x) = A097095(x)/(1-x-x^2) = A097095(x^2)^2/(1-x-x^3)^2, where A097095(x) is the g.f. of the main diagonal of triangle A097094.

Prog

(PARI)

Crossrefs

Cf. A097094, A097095, A097097.

Sequence in context: A034456 A272080 A002512 * A073777 A215422 A026633

Adjacent sequences: A097093 A097094 A097095 * A097097 A097098 A097099

Keyword

nonn

Author

Paul D. Hanna, Jul 26 2004

Status

approved