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A030180 (n^7-n)/42. 1
0, 0, 3, 52, 390, 1860, 6665, 19608, 49932, 113880, 238095, 463980, 853138, 1494012, 2509845, 4068080, 6391320, 9769968, 14576667, 21282660, 30476190, 42883060, 59389473, 81067272, 109201700, 145321800, 191233575, 249056028, 321260202, 410711340, 520714285 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..30.

FORMULA

a(n) = A133499(n)/42. - Michel Marcus, Aug 30 2013

PROG

(PARI) a(n) = (n^7-n)/42; \\ Michel Marcus, Aug 30 2013

CROSSREFS

Sequence in context: A037106 A246748 A202654 * A005547 A301948 A263530

Adjacent sequences:  A030177 A030178 A030179 * A030181 A030182 A030183

KEYWORD

nonn

AUTHOR

Charlton Harrison (charlton(AT)bach.dynet.com)

STATUS

approved

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Last modified December 11 02:24 EST 2019. Contains 329910 sequences. (Running on oeis4.)