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A034716 Dirichlet convolution of factorials with themselves. 0
1, 4, 12, 52, 240, 1464, 10080, 80736, 725796, 7258080, 79833600, 958006368, 12454041600, 174356602560, 2615348737440, 41845579937856, 711374856192000, 12804747412916160, 243290200817664000, 4865804016367800960 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Sequence in context: A109499 A188230 A124006 * A129841 A065525 A190342

Adjacent sequences:  A034713 A034714 A034715 * A034717 A034718 A034719

KEYWORD

nonn

AUTHOR

Erich Friedman (erich.friedman(AT)stetson.edu)

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Last modified February 15 14:37 EST 2012. Contains 205822 sequences.