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A152407 Column 0 of triangle A152406; also, column 1 of matrix square of A152406. 5
1, 1, 4, 26, 224, 2346, 28516, 391042, 5936376, 98435034, 1765073308, 33962477610, 696914830952, 15174458669522, 349117545211884, 8456730834434722, 215014409153234928, 5722673988023673970, 159062075672724943220 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Matrix powers of triangle T=A152406 satisfy:

column k of T^(j+1) = column j of T^(k+1) for all j>=0, k>=0.

LINKS

Paul D. Hanna, Table of n, a(n), n=0..100.

CROSSREFS

Cf. A152406; A152408, A152409, A152410.

Sequence in context: A259902 A089816 A245768 * A291847 A168448 A105616

Adjacent sequences:  A152404 A152405 A152406 * A152408 A152409 A152410

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Dec 05 2008

STATUS

approved

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Last modified November 14 23:27 EST 2018. Contains 317221 sequences. (Running on oeis4.)