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A125656 Column 3 of triangle A125653; also equals the eigensequence of the matrix cube of A125653. 6
1, 1, 4, 13, 47, 195, 908, 4674, 26327, 160825, 1057575, 7440520, 55714863, 442052441, 3701932760, 32610988520, 301289654059, 2911657603468, 29363468538215, 308365818949091, 3365801354839753, 38117461277764685 (list; graph; refs; listen; history; text; internal format)
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+3,3) = Sum_{k=0..n-1} [A125653^3](n-1,k)*a(k) for n>0 with a(0)=1.

CROSSREFS

Cf. A125653 (triangle); rows: A125654, A125655, A125657; A125658 (row sums); A125659 (central terms).

Sequence in context: A149442 A078468 A149443 * A279159 A149444 A149445

Adjacent sequences:  A125653 A125654 A125655 * A125657 A125658 A125659

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Nov 30 2006

STATUS

approved

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Last modified June 23 13:59 EDT 2021. Contains 345402 sequences. (Running on oeis4.)