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Search: id:A049976
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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
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; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A049978 A092763 A116868 this_sequence A032789 A089243 A034921

Adjacent sequences: A049973 A049974 A049975 this_sequence A049977 A049978 A049979

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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