id:A049977 - OEIS Search Results

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a(n)=a(1)+a(2)+...+a(n-1)+a(m), where m=2^(p+1)+2-n, and 2^p<n-1<=2^(p+1).

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1, 3, 4, 11, 20, 50, 93, 185, 368, 920, 1748, 3453, 6876, 13743, 27479, 54957, 109912, 274780, 522082, 1030428, 2053989, 4104555, 8207405, 16413982, 32827412, 65654641, 131309190, 262618337, 525236644, 1050473279, 2100946551 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A025079 A036652 A097072 this_sequence A000677 A110865 A001642` `Adjacent sequences: A049974 A049975 A049976 this_sequence A049978 A049979 A049980`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

AT&T Labs Research