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Search: id:A027770
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| 10, 121, 792, 3718, 14014, 45045, 128128, 330616, 787644, 1755182, 3695120, 7407036, 14226212, 26313518, 47070144, 81719000, 138105110, 227779695, 367447080, 580870290, 901350450, 1374917115, 2064391680
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OFFSET
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0,1
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FORMULA
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Number of 12-subsequences of [ 1, n ] with just 1 contiguous pair; g.f. (10+x)/(1-x)^12
C(n+10, 10)*C(n+10, 1) - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 08 2005
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CROSSREFS
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Sequence in context: A111482 A095870 A111695 this_sequence A091692 A098309 A056116
Adjacent sequences: A027767 A027768 A027769 this_sequence A027771 A027772 A027773
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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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