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A056974 Number of blocks of {0, 0, 0} in the binary expansion of n. +0
10
0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 3, 2, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 4, 3, 2, 2, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 3, 2, 1, 1, 0, 0, 0 (list; graph; listen)
OFFSET

1,16

LINKS

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

FORMULA

a(2n) = a(n) + [n congruent to 0 mod 4], a(2n+1) = a(n). - Ralf Stephan (ralf(AT)ark.in-berlin.de), Aug 22 2003

CROSSREFS

Cf. A014082, A056974, A056975, A056976, A056977, A056978, A056979, A056980.

Sequence in context: A037859 A037877 A010109 this_sequence A056976 A124749 A127844

Adjacent sequences: A056971 A056972 A056973 this_sequence A056975 A056976 A056977

KEYWORD

nonn

AUTHOR

Eric Weisstein (eric(AT)weisstein.com)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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