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A017103
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a(n) = (8*n+3)^3.
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1
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27, 1331, 6859, 19683, 42875, 79507, 132651, 205379, 300763, 421875, 571787, 753571, 970299, 1225043, 1520875, 1860867, 2248091, 2685619, 3176523, 3723875, 4330747, 5000211, 5735339, 6539203, 7414875
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,1
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LINKS
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FORMULA
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G.f.: (27+1223*x+1697*x^2+125*x^3)/(x-1)^4 . - R. J. Mathar, Jul 14 2016
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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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