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Search: id:A027816
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| 462, 6336, 46332, 240240, 990990, 3459456, 10618608, 29405376, 74826180, 177365760, 395747352, 838053216, 1695505812, 3294910080, 6177956400, 11218384320, 19791524610, 34015101120, 57085528500, 93740446800
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OFFSET
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0,1
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FORMULA
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Number of 17-subsequences of [ 1, n ] with just 5 contiguous pairs; g.f. 66*(7+5x)/(1-x)^13
C(n+7, 7)*C(n+11, 5) - Zerinvary Lajos (zlaja(AT)freemail.hu), May 26 2005
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CROSSREFS
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Sequence in context: A108749 A158627 A154056 this_sequence A027823 A023912 A027565
Adjacent sequences: A027813 A027814 A027815 this_sequence A027817 A027818 A027819
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KEYWORD
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nonn
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AUTHOR
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thi ngoc dinh (via rkg(AT)cpsc.ucalgary.ca)
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