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A152401 Column 1 of triangle A152400; also, column 1 of square array A152405. 6
1, 2, 8, 45, 318, 2671, 25805, 280609, 3381993, 44658052, 640279918, 9895457035, 163871617543, 2893296199441, 54230087607409, 1075060346670798, 22467666780553040, 493590689966427930, 11369641989418301977 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Matrix powers of triangle T=A152400 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. A152400; A127715, A152402, A152403, A152404; A152405.

Sequence in context: A139015 A197996 A139678 * A009345 A084553 A144164

Adjacent sequences:  A152398 A152399 A152400 * A152402 A152403 A152404

KEYWORD

nonn

AUTHOR

Paul D. Hanna (pauldhanna(AT)juno.com), Dec 05 2008

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Last modified February 14 22:20 EST 2012. Contains 205677 sequences.