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A054185 Binomial transform of A000031. 0
1, 3, 8, 20, 49, 119, 290, 714, 1781, 4507, 11580, 30208, 79941, 214327, 581292, 1592496, 4400765, 12251895, 34326566, 96694866, 273639617, 777444807, 2216341466, 6336999666, 18165573373, 52191551315, 150254448730, 433350470586 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..27.

FORMULA

G.f.: (1/(1 - x)) * (1 - Sum_{k>=1} phi(k)*log(1 - 2*(x/(1 - x))^k)/k). - Ilya Gutkovskiy, Nov 12 2019

CROSSREFS

Cf. A000031.

Sequence in context: A048739 A054192 A124523 * A171853 A093963 A261233

Adjacent sequences:  A054182 A054183 A054184 * A054186 A054187 A054188

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Apr 29 2000

STATUS

approved

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Last modified December 14 22:42 EST 2019. Contains 329987 sequences. (Running on oeis4.)