A092424 Antidiagonal sums of triangle A092422, which is generated from the even-numbered Fibonacci polynomials (A011973).

1, 1, 2, 3, 5, 9, 15, 28, 48, 90, 159, 296, 537, 992, 1830, 3376, 6273, 11609, 21627, 40186, 74966, 139764, 261063, 487901, 912607, 1708571, 3200241, 5999508, 11251618, 21116746, 39647006, 74479444, 139971218, 263167645, 494991043

Offset

0,3

Links

Table of n, a(n) for n=0..34.

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

Crossrefs

Cf. A092422.

Sequence in context: A328078 A178738 A060013 * A167510 A351359 A191701

Adjacent sequences: A092421 A092422 A092423 * A092425 A092426 A092427

Keyword

nonn

Author

Paul D. Hanna, Mar 22 2004

Status

approved