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A151686 Row sums of A002640. 1
2, 70, 47328, 739818456, 260629633975688, 1999548813009227307620 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

Sequence in context: A085915 A061144 A132566 * A201555 A164554 A141908

Adjacent sequences:  A151683 A151684 A151685 * A151687 A151688 A151689

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Jun 02 2009

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Last modified February 17 16:00 EST 2012. Contains 206050 sequences.