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0, 81, 1296, 6561, 20736, 50625, 104976, 194481, 331776, 531441, 810000, 1185921, 1679616, 2313441, 3111696, 4100625, 5308416, 6765201, 8503056, 10556001, 12960000, 15752961, 18974736, 22667121, 26873856, 31640625, 37015056, 43046721, 49787136, 57289761
(list;
graph;
refs;
listen;
history;
text;
internal format)
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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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G.f.: -81*x*(1+x)*(x^2+10*x+1) / (x-1)^5. - R. J. Mathar, May 14 2014
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MAPLE
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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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