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A225284 Number of distinct values of the sum of i*(i-1) over 4 realizations of i in 0..n 1
1, 5, 12, 21, 36, 51, 71, 94, 123, 150, 188, 223, 263, 310, 359, 409, 465, 523, 586, 653, 726, 795, 878, 954, 1038, 1131, 1222, 1314, 1419, 1522, 1626, 1739, 1854, 1970, 2101, 2220, 2347, 2484, 2627, 2760, 2913, 3059, 3214, 3367, 3524, 3688, 3861, 4028, 4200 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 4 of A225281

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..390

CROSSREFS

Sequence in context: A256320 A301693 A038794 * A271250 A271539 A242338

Adjacent sequences:  A225281 A225282 A225283 * A225285 A225286 A225287

KEYWORD

nonn

AUTHOR

R. H. Hardin May 04 2013

STATUS

approved

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Last modified May 14 19:25 EDT 2021. Contains 343901 sequences. (Running on oeis4.)