id:A056979 - OEIS Search Results

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Number of blocks of {1, 0, 1} in binary expansion of n.

+0
10

0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 2, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 2, 2, 1, 2, 1, 1, 0, 0, 0, 0, 1, 2, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 1, 2, 3, 2, 2, 1, 1, 2, 2, 1, 2, 1, 1, 0, 0, 0, 0, 0, 1, 0 (list; graph; listen)

	OFFSET	`1,21`
	LINKS	`Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	FORMULA	`a(2n) = a(n), a(2n+1) = a(n) + [n congruent to 2 mod 4]. - Ralf Stephan (ralf(AT)ark.in-berlin.de), Aug 22 2003`
	CROSSREFS	`Cf. A014082, A056974, A056975, A056976, A056977, A056978, A056979, A056980.` `Sequence in context: A004610 A068934 A035200 this_sequence A087812 A113045 A083093` `Adjacent sequences: A056976 A056977 A056978 this_sequence A056980 A056981 A056982`
	KEYWORD	`nonn`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com)`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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