A143123 - OEIS

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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

(list; graph; refs; listen; history; text; internal format)

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