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Search: id:A049955
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A049955 a(n)=a(1)+a(2)+...+a(n-1)+a(m), where m=2n-2-2^(p+1) and 2^p<n-1<=2^(p+1). +0
1
1, 2, 2, 7, 19, 33, 71, 168, 471, 776, 1557, 3140, 6415, 13438, 29240, 68778, 192896, 317016, 634037, 1268100, 2536335, 5073278, 10148920, 20308138, 40671616, 81591470, 164134024, 332073226, 679381312, 1420045956, 3090573668 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Adjacent sequences: A049952 A049953 A049954 this_sequence A049956 A049957 A049958

Sequence in context: A133602 A137249 A051769 this_sequence A156464 A156520 A069101

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 9 12:23 EST 2009. Contains 166233 sequences.

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