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0, 0, 28, 234, 1008, 3100, 7740, 16758, 32704, 58968, 99900, 160930, 248688, 371124, 537628, 759150, 1048320, 1419568, 1889244, 2475738, 3199600, 4083660, 5153148, 6435814, 7962048, 9765000, 11880700, 14348178, 17209584, 20510308, 24299100, 28628190
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OFFSET
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0,3
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LINKS
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Table of n, a(n) for n=0..31.
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FORMULA
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a(n) = floor(n^8/(n^3+1)). [From Gary Detlefs, Feb 11 2010]
G.f.: 2*x^2*(14+33*x+12*x^2+x^3)/(1-x)^6. [Colin Barker, Feb 01 2012]
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MAPLE
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seq(floor(n^8/(n^3+1)), n=0..25); [From Gary Detlefs, Feb 11 2010]
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MATHEMATICA
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Table[n^5 - n^2, {n, 0, 40}] (* and *) LinearRecurrence[{6, -15, 20, -15, 6, -1}, {0, 0, 28, 234, 1008, 3100}, 40] (* From Vladimir Joseph Stephan Orlovsky, Feb 20 2012 *)
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PROG
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(MAGMA) [n^5 - n^2: n in [0..50]]; - Vincenzo Librandi, Mar 31 2011
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CROSSREFS
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Sequence in context: A125365 A126523 A115224 * A138405 A024015 A223347
Adjacent sequences: A135494 A135495 A135496 * A135498 A135499 A135500
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KEYWORD
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nonn,easy
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AUTHOR
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Rolf Pleisch, Mar 16 2008
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EXTENSIONS
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More terms from Vincenzo Librandi, Mar 31 2011
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STATUS
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approved
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