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A135497 n^5 - n^2. 0
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..31.

FORMULA

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]

MAPLE

seq(floor(n^8/(n^3+1)), n=0..25); [From Gary Detlefs, Feb 11 2010]

MATHEMATICA

Table[n^5 - n^2, {n, 0, 40}] (* and *) LinearRecurrence[{6, -15, 20, -15, 6, -1}, {0, 0, 28, 234, 1008, 3100}, 40] (* Vladimir Joseph Stephan Orlovsky, Feb 20 2012 *)

PROG

(MAGMA) [n^5 - n^2: n in [0..50]]; - Vincenzo Librandi, Mar 31 2011

CROSSREFS

Sequence in context: A125365 A126523 A115224 * A138405 A024015 A223347

Adjacent sequences:  A135494 A135495 A135496 * A135498 A135499 A135500

KEYWORD

nonn,easy

AUTHOR

Rolf Pleisch, Mar 16 2008

EXTENSIONS

More terms from Vincenzo Librandi, Mar 31 2011

STATUS

approved

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Last modified November 22 20:13 EST 2014. Contains 249827 sequences.