A174866 Partial sums of A000419.

3, 9, 20, 32, 46, 65, 86, 108, 132, 159, 189, 222, 257, 295, 337, 380, 424, 470, 518, 569, 623, 679, 736, 795, 857, 923, 990, 1059, 1129, 1204, 1280, 1357, 1435, 1518, 1602, 1688, 1776, 1867, 1960, 2054, 2150, 2249, 2351, 2456, 2563, 2671, 2781, 2895, 3010, 3128, 3248, 3371, 3497, 3626, 3757, 3889, 4022, 4156, 4294, 4433, 4573, 4714, 4856

Offset: 1

Author

Jonathan Vos Post, Dec 01 2010

Keywords

• nonn

Crossrefs

Cf. A000419.

Formula

a(n) = Sum_{i=1..n} A000419(i).

Extensions

a(41) corrected by Georg Fischer, Aug 28 2020