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Search: id:A027822
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| 210, 2772, 19404, 96096, 378378, 1261260, 3699696, 9801792, 23891868, 54318264, 116396280, 237025152, 461705244, 864913896, 1565082288, 2745758400, 4684950270, 7795127340, 12676924260, 20190250080
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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 6 contiguous pairs; g.f. 42*(5+6x)/(1-x)^12
C(n+5, 5)*C(n+10, 6) - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 08 2005
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CROSSREFS
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Sequence in context: A064260 A027806 A024407 this_sequence A024449 A103604 A061133
Adjacent sequences: A027819 A027820 A027821 this_sequence A027823 A027824 A027825
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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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