A023417 - OEIS

A023417

Numerator of n*(n-3)*(3*n^2-6*n+2)/(3*(n-1)*(n-2)).

0, 52, 235, 111, 1498, 2920, 1719, 4235, 13156, 6516, 28015, 19481, 17610, 70096, 91273, 19485, 147592, 183940, 75537, 138149, 333730, 133224, 474925, 280163, 218916, 765100, 886327, 170235, 1171366

(list; graph; refs; listen; history; text; internal format)

OFFSET

3,2

LINKS

G. C. Greubel, Table of n, a(n) for n = 3..1000

MATHEMATICA

Numerator[Table[n*(n - 3)*(3*n^2 - 6*n + 2)/(3*(n - 1)*(n - 2)), {n, 3, 50}]] (* G. C. Greubel, Jan 01 2018 *)

PROG

(PARI) for(n=3, 30, print1(numerator(n*(n - 3)*(3*n^2 - 6*n + 2)/(3*(n - 1)*(n - 2))), ", ")) \\ G. C. Greubel, Jan 01 2018

(Magma) [Numerator(n*(n - 3)*(3*n^2 - 6*n + 2)/(3*(n - 1)*(n - 2))): n in [3..30]]; // G. C. Greubel, Jan 01 2018

CROSSREFS

Sequence in context: A346825 A346858 A251287 * A122239 A086860 A070147

Adjacent sequences: A023414 A023415 A023416 * A023418 A023419 A023420

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved