A125659 Central terms of triangle A125653, in which column k equals the eigensequence of the matrix power A125653^k: a(n) = A125653(2n,n) for n>=0.

1, 1, 3, 13, 79, 631, 6171, 70974, 934493, 13812955, 225892738, 4041653903, 78416804094, 1638071535998, 36622481352509, 871920455890863, 22011856296991521, 587044908015897519, 16485592791887247448

Offset

0,3

Comments

Also equal to the n-th term in the eigensequence of the n-th matrix power of triangle A125653.

Links

Table of n, a(n) for n=0..18.

Crossrefs

Cf. A125653 (triangle); rows: A125654, A125655, A125656, A125657; A125658 (row sums).

Sequence in context: A355165 A213527 A261601 * A010844 A090364 A112935

Adjacent sequences: A125656 A125657 A125658 * A125660 A125661 A125662

Keyword

nonn

Author

Paul D. Hanna, Nov 30 2006

Status

approved