id:A084185 - OEIS Search Results

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First occurrence of binary n in the binary expansion of sqrt(2).

+0
4

1, 1, 3, 8, 1, 3, 17, 8, 14, 4, 1, 19, 3, 18, 17, 8, 62, 51, 14, 6, 4, 1, 42, 80, 19, 3, 41, 18, 40, 17, 31, 8, 57, 62, 128, 51, 69, 20, 14, 6, 104, 4, 111, 66, 1, 96, 42, 146, 80, 50, 19, 118, 3, 77, 41, 126, 18, 98, 40, 17, 75, 33, 31, 453, 8, 57 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`a(n)=1 iff n in A084188. a(2^(n+1)+1) = A084187(n)-1.`
	EXAMPLE	`The binary expansion of sqrt(2) is 1.0110101000001..(A004539) and binary(10)=1010 occurs first at index 4, so a(10)=4.`
	CROSSREFS	`Cf. A084186.` `Sequence in context: A156827 A140272 A021728 this_sequence A073227 A016550 A086245` `Adjacent sequences: A084182 A084183 A084184 this_sequence A084186 A084187 A084188`
	KEYWORD	`nonn`
	AUTHOR	`Ralf Stephan (ralf(AT)ark.in-berlin.de), May 18 2003`

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

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