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Search: id:A053110
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| 1, 28, 588, 10290, 158466, 2218524, 28840812, 353299947, 4121832715, 46164526408, 499416240232, 5243870522436, 53648829191076, 536488291910760, 5257585260725448, 50604258134482437, 479252091744216021
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OFFSET
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0,2
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FORMULA
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a(n) = 7^(n-1)*binomial(n+7, 6); G.f. (-1+(1-7*x)^(-7))/(x*7^2).
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PROGRAM
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(Other) SAGE:[lucas_number2(n, 7, 0)*binomial(n, 6)/7^8 for n in xrange(7, 24)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 13 2009]
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CROSSREFS
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A036226, A001792, A036083, A036224.
Sequence in context: A145149 A062142 A107397 this_sequence A004371 A089908 A038121
Adjacent sequences: A053107 A053108 A053109 this_sequence A053111 A053112 A053113
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KEYWORD
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easy,nonn
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AUTHOR
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Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de
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