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Search: id:A144645
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| 1, 1, 0, 1, 1, 0, 1, 3, 1, 0, 1, 6, 7, 1, 0, 1, 10, 25, 15, 0, 0, 1, 15, 65, 90, 25, 0, 0, 1, 21, 140, 350, 280, 35, 0, 0, 1, 28, 266, 1050, 1645, 770, 35, 0, 0, 1, 36, 462, 2646, 6825, 6930, 1855, 0, 0, 0, 1, 45, 750, 5880, 22575, 39795, 26425, 3675, 0, 0, 0, 1
(list; table; graph; listen)
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OFFSET
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0,8
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LINKS
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David Applegate and N. J. A. Sloane, The Gift Exchange Problem (arXiv:0907.0513, 2009)
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EXAMPLE
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Triangle begins:
1
1,0
1,1,0
1,3,1,0
1,6,7,1,0
1,10,25,15,0,0
1,15,65,90,25,0,0
1,21,140,350,280,35,0,0
1,28,266,1050,1645,770,35,0,0
1,36,462,2646,6825,6930,1855,0,0,0
1,45,750,5880,22575,39795,26425,3675,0,0,0
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CROSSREFS
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Sequence in context: A090181 A144417 A085791 this_sequence A151510 A151512 A106800
Adjacent sequences: A144642 A144643 A144644 this_sequence A144646 A144647 A144648
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KEYWORD
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nonn,tabl
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AUTHOR
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David Applegate and N. J. A. Sloane (njas(AT)research.att.com), Jan 25 2009
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Search completed in 0.002 seconds
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