A341316 Row sums in A341315.

0, 3, 6, 12, 18, 33, 33, 66, 66, 93, 96, 168, 117, 237, 195, 222, 258, 411, 276, 516, 348, 453, 501, 762, 453, 783, 708, 822, 711, 1221, 663, 1398, 1026, 1167, 1230, 1356, 1008, 2001, 1545, 1650, 1356, 2463, 1356, 2712, 1833, 1923, 2283, 3246, 1797, 3153, 2346, 2868, 2592, 4137

Offset: 0

Author

N. J. A. Sloane, Feb 17 2021

Keywords

• nonn

Comments

This is three times A057661. See that entry for much more information.

Crossrefs

Cf. A057660, A057661, A341314, A341315.

Formula

a(n) = 3*(A057660(n)+1)/2 for n>=1. - Hugo Pfoertner, Feb 17 2021