id:A049948 - OEIS Search Results

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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).

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1, 2, 1, 5, 10, 20, 40, 89, 208, 377, 754, 1517, 3064, 6296, 13138, 28586, 67246, 121355, 242710, 485429, 970888, 1941944, 3884434, 7771178, 15552430, 31158968, 62493400, 125714978, 254343502, 520355000, 1087650970, 2367152042 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A011132 A019098 A035309 this_sequence A110352 A107310 A049950` `Adjacent sequences: A049945 A049946 A049947 this_sequence A049949 A049950 A049951`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified December 6 19:58 EST 2009. Contains 170429 sequences.

AT&T Labs Research