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Search: id:A071909
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A071909 A002487(n)*A002487(n+1)*A002487(n+2)/2. +0
1
0, 1, 1, 3, 3, 9, 3, 6, 6, 30, 15, 25, 15, 30, 6, 10, 10, 70, 42, 84, 60, 140, 35, 49, 35, 140, 60, 84, 42, 70, 10, 15, 15, 135, 90, 198, 154, 385, 105, 165, 132, 572, 260, 390, 210, 378, 63, 81, 63, 378, 210, 390, 260, 572, 132, 165, 105, 385, 154, 198, 90, 135, 15, 21, 21, 231 (list; graph; listen)
OFFSET

0,4

CROSSREFS

Sequence in context: A127795 A074724 A109932 this_sequence A134662 A145444 A165824

Adjacent sequences: A071906 A071907 A071908 this_sequence A071910 A071911 A071912

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Jun 13 2002

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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