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A196731
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Expansion of (1-x)/(1-12*x).
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2
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1, 11, 132, 1584, 19008, 228096, 2737152, 32845824, 394149888, 4729798656, 56757583872, 681091006464, 8173092077568, 98077104930816, 1176925259169792, 14123103110037504, 169477237320450048
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OFFSET
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0,2
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LINKS
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FORMULA
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a(n) = Sum_{k=0..n} A193722(n,k)*9^(n-k).
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MATHEMATICA
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PROG
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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