A059290 a(n) = round(1/144*n^2*(n + 3)).

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

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) a(n) = { round(n^2*(n + 3)/144) } \\ Harry J. Smith, Jun 25 2009

Crossrefs

Cf. A001400, A059291.

Sequence in context: A025692 A137285 A062441 * A309881 A293230 A133231

Adjacent sequences: A059287 A059288 A059289 * A059291 A059292 A059293

Keyword

nonn

Author

N. J. A. Sloane, Jan 25 2001

Status

approved