A143123 a(n) = Sum_{j=0..n} A000293(j).

1, 2, 6, 16, 42, 101, 241, 548, 1232, 2696, 5818, 12318, 25744, 52992, 107796, 216598, 430669, 847518, 1652642, 3194279, 6124608, 11653341, 22015653, 41310879, 77024333, 142739427, 262996080, 481889660, 878308359, 1592707740

Offset

0,2

Links

Table of n, a(n) for n=0..29.

Example

a(3) = 16 = (1 + 1 + 4 + 10).

Crossrefs

Cf. A000293.

Sequence in context: A263592 A178438 A365548 * A102699 A266124 A217194

Adjacent sequences: A143120 A143121 A143122 * A143124 A143125 A143126

Keyword

nonn

Author

Gary W. Adamson, Jul 26 2008

Extensions

a(11) corrected and more terms from Georg Fischer, Aug 28 2020

Status

approved