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A135993 a(0)=0; a(n)=(floor(n/S2(n))) mod 2, where S2(n) is the binary weight of n. +0
2
0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1 (list; graph; listen)
OFFSET

0,1

LINKS

J.-P. Allouche,J. Shallit and J. Sondow, Summation of Series Defined by Counting Blocks of Digits, arXiv:math/0512399

J. Sondow and P. Hadjicostas, The Generalized-Euler-Constant Function (z) and a Generalization of Somos's Quadratic Recurrence Constant, arXiv:0610499

EXAMPLE

a(17)=(floor(17/2))mod 2 = 0

a(18)=(floor(18/2))mod 2 = 1

CROSSREFS

Cf. A010060, A007953.

Sequence in context: A101309 A141474 A073424 this_sequence A145573 A092202 A159684

Adjacent sequences: A135990 A135991 A135992 this_sequence A135994 A135995 A135996

KEYWORD

easy,nonn,new

AUTHOR

Ctibor O. Zizka (ctibor.zizka(AT)seznam.cz), Mar 03 2008

EXTENSIONS

Converted references into links - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 30 2009

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


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