A125657 Column 4 of triangle A125653; also equals the eigensequence of the matrix 4th power of A125653.

1, 1, 5, 19, 79, 372, 1947, 11177, 69705, 468429, 3369363, 25796583, 209239154, 1790741544, 16114087300, 151993139245, 1498673357622, 15410094488805, 164884814714349, 1832270712038289, 21109130822778032, 251727974604724389

Offset

0,3

Comments

Column k of triangle A125653 equals the eigensequence of matrix power A125653^k for k>=0.

Links

Table of n, a(n) for n=0..21.

Formula

a(n) = A125653(n+4,4) = Sum_{k=0..n-1} [A125653^4](n-1,k)*a(k) for n>0 with a(0)=1.

Crossrefs

Cf. A125653 (triangle); rows: A125654, A125655, A125656; A125658 (row sums); A125659 (central terms).

Sequence in context: A149778 A163609 A149779 * A111929 A146030 A098041

Adjacent sequences: A125654 A125655 A125656 * A125658 A125659 A125660

Keyword

nonn

Author

Paul D. Hanna, Nov 30 2006

Status

approved