A174999 Partial sums of A156681.

4, 16, 24, 48, 63, 75, 115, 139, 199, 215, 250, 334, 382, 402, 438, 550, 580, 643, 787, 811, 891, 1071, 1092, 1140, 1239, 1267, 1339, 1559, 1679, 1943, 1975, 2020, 2090, 2233, 2293, 2605, 2773, 2809, 2929, 3293, 3338, 3434, 3629, 4049, 4089, 4161, 4385

Offset: 1

Author

Jonathan Vos Post, Apr 03 2010

Keywords

• nonn

Crossrefs

Cf. A156681.

Formula

a(n) = Sum_{i=1..n} A156681(i).

Extensions

a(45) corrected by Georg Fischer, Aug 29 2020