id:A043687 - OEIS Search Results

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a(n)=(s(n)-1)/2, where s(n) = n-th number whose base 2 representation has exactly 3 runs.

+0
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2, 4, 5, 6, 8, 9, 11, 12, 13, 14, 16, 17, 19, 23, 24, 25, 27, 28, 29, 30, 32, 33, 35, 39, 47, 48, 49, 51, 55, 56, 57, 59, 60, 61, 62, 64, 65, 67, 71, 79, 95, 96, 97, 99, 103, 111, 112, 113, 115, 119, 120, 121, 123, 124, 125, 126, 128, 129 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A035063 A004128 A023717 this_sequence A087118 A039032 A000062` `Adjacent sequences: A043684 A043685 A043686 this_sequence A043688 A043689 A043690`
	KEYWORD	`nonn,base`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

AT&T Labs Research