A225283 Number of distinct values of the sum of i*(i-1) over 3 realizations of i in 0..n.

1, 4, 9, 15, 26, 36, 49, 66, 85, 103, 130, 152, 180, 214, 247, 276, 320, 362, 399, 444, 495, 542, 601, 652, 705, 773, 831, 896, 975, 1040, 1112, 1192, 1267, 1349, 1443, 1518, 1597, 1702, 1798, 1884, 1992, 2085, 2197, 2310, 2418, 2522, 2653, 2759, 2870, 3014, 3137

Offset

1,2

Links

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

Crossrefs

Row 3 of A225281.

Sequence in context: A244672 A364013 A056928 * A122964 A301254 A291318

Adjacent sequences: A225280 A225281 A225282 * A225284 A225285 A225286

Keyword

nonn

Author

R. H. Hardin, May 04 2013

Status

approved