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A049976 a(n)=a(1)+a(2)+...+a(n-1)+a(m), where m=2n-3-2^(p+1) and 2^p<n-1<=2^(p+1). 0
1, 3, 4, 9, 21, 39, 81, 179, 418, 756, 1515, 3047, 6154, 12645, 26387, 57413, 135059, 243732, 487467, 974951, 1949962, 3900261, 7801619, 15607877, 31235987, 62580646, 125513700, 252489895, 510831447, 1045097262, 2184472237 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..31.

CROSSREFS

Sequence in context: A092763 A232955 A116868 * A032789 A089243 A299123

Adjacent sequences:  A049973 A049974 A049975 * A049977 A049978 A049979

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified May 22 18:53 EDT 2019. Contains 323481 sequences. (Running on oeis4.)