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A323334 Sum of distinct products i*j*k with 1 <= i, j, k <= n. 2
1, 15, 90, 310, 990, 2220, 5300, 9660, 17130, 28670, 52848, 75696, 128541, 183393, 257628, 344316, 529038, 683316, 1001110, 1256010, 1607004, 2049490, 2837700, 3330636, 4177186, 5150340, 6273810, 7432702, 9779991, 11124711, 14381168, 16610640, 19542393, 23032799, 26873769 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..500

EXAMPLE

a(2) = 1 + 2 + 4 + 8 = 15.

a(3) = 1 + 2 + 3 + 4 + 6 + 8 + 9 + 12 + 18 + 27 = 90.

CROSSREFS

Column 3 of A321163.

Cf. A027425.

Sequence in context: A010822 A316224 A022707 * A151974 A179096 A001297

Adjacent sequences:  A323331 A323332 A323333 * A323335 A323336 A323337

KEYWORD

nonn

AUTHOR

Seiichi Manyama, Jan 11 2019

STATUS

approved

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Last modified February 16 20:45 EST 2019. Contains 320189 sequences. (Running on oeis4.)