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A047083 a(n) = Sum_{i=0..floor((n+1)/2)} A047080(n,i). 2
1, 2, 2, 5, 7, 15, 23, 49, 76, 161, 253, 532, 845, 1766, 2829, 5881, 9488, 19631, 31863, 65649, 107112, 219857, 360360, 737152, 1213150, 2473930, 4086217, 8309252, 13769519, 27927146, 46416937, 93915759, 156520328, 315982677, 527937429, 1063586803, 1781131638 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..36.

CROSSREFS

Cf. A047080, A047081, A047082.

Sequence in context: A255063 A195964 A238422 * A327019 A035085 A208238

Adjacent sequences:  A047080 A047081 A047082 * A047084 A047085 A047086

KEYWORD

nonn

AUTHOR

Clark Kimberling

EXTENSIONS

Data corrected by Sean A. Irvine, May 11 2021

STATUS

approved

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Last modified June 30 03:34 EDT 2022. Contains 354913 sequences. (Running on oeis4.)