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A092423 Row sums of triangle A092422, which is generated from the even-numbered Fibonacci polynomials (A011973). 1
1, 2, 4, 9, 21, 50, 121, 297, 736, 1837, 4610, 11618, 29379, 74500, 189362, 482282, 1230460, 3144137, 8045057, 20610526, 52860253, 135707819, 348720196, 896833527, 2308229426, 5944998971, 15321681454, 39511323139, 101947848801, 263183509040, 679747862389, 1756432848707, 4540430713995 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..32.

PROG

(PARI) T(n, k)=if(n<k||k<0, 0, if(k==0, 1, sum(j=0, min(k, n-k), binomial(k+j, k-j)*T(n-k, j))));

a(n)=sum(k=0, n, T(n, k));

vector(66, n, a(n-1))

CROSSREFS

Cf. A092422.

Sequence in context: A027826 A261664 A091964 * A238438 A257104 A318008

Adjacent sequences:  A092420 A092421 A092422 * A092424 A092425 A092426

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Mar 22 2004

STATUS

approved

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Last modified November 30 02:42 EST 2020. Contains 338781 sequences. (Running on oeis4.)