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 A059290 a(n) = round(1/144*n^2*(n + 3)). 2
 0, 0, 0, 0, 1, 1, 2, 3, 5, 7, 9, 12, 15, 19, 23, 28, 34, 40, 47, 55, 64, 74, 84, 96, 108, 122, 136, 152, 169, 187, 206, 227, 249, 272, 297, 323, 351, 380, 411, 444, 478, 514, 551, 591, 632, 675, 720, 767, 816, 867, 920, 975, 1033, 1092, 1154, 1218 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,7 REFERENCES L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 120, see P(n,4). LINKS Harry J. Smith, Table of n, a(n) for n = 0..1000 MATHEMATICA Table[Round[1/144*n^2*(n + 3)], {n, 0, 50}] (* G. C. Greubel, Jan 04 2017 *) PROG (PARI) { default(realprecision, 100); for (n = 0, 1000, write("b059290.txt", n, " ", round(n^2*(n + 3)/144)); ) } \\ Harry J. Smith, Jun 25 2009 CROSSREFS Cf. A001400, A059291. Sequence in context: A025692 A137285 A062441 * A293230 A133231 A235111 Adjacent sequences:  A059287 A059288 A059289 * A059291 A059292 A059293 KEYWORD nonn AUTHOR N. J. A. Sloane, Jan 25 2001 STATUS approved

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Last modified January 17 14:12 EST 2019. Contains 319225 sequences. (Running on oeis4.)