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A072629 Parity of n*Floor[log[n]]. 1
0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

FORMULA

a(n)= Mod[n*Floor[log[n]], 2]

EXAMPLE

Parity either alternates or it is steadily 0. Intervals of such kind also change and return: 01010...0000....0101..etc.

CROSSREFS

See also A004648, A072608, A072609, A072610, A072630.

Sequence in context: A144598 A144606 A060510 * A164292 A151763 A022925

Adjacent sequences:  A072626 A072627 A072628 * A072630 A072631 A072632

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Jun 28 2002

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Last modified February 17 13:11 EST 2012. Contains 206031 sequences.