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A125654 Column 1 of triangle A125653; also equals the eigensequence of triangle A125653. 7
1, 1, 2, 4, 9, 24, 75, 269, 1091, 4940, 24699, 135141, 803122, 5150259, 35436569, 260300079, 2032260757, 16798435176, 146498077799, 1343752561687, 12927673809234, 130120187348654, 1367117984143960, 14962669807495136 (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..23.

FORMULA

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

CROSSREFS

Cf. A125653 (triangle); rows: A125655, A125656, A125657; A125658 (row sums); A125659 (central terms).

Sequence in context: A009283 A236756 A291378 * A141824 A005001 A091151

Adjacent sequences:  A125651 A125652 A125653 * A125655 A125656 A125657

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Nov 30 2006

STATUS

approved

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Last modified February 23 07:00 EST 2019. Contains 320411 sequences. (Running on oeis4.)