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A111412 f(f(n+1))-f(f(n)), where f(m) = wt(m) = A000120(m). 0
1, 0, 0, 0, 0, 0, 1, -1, 0, 0, 1, -1, 1, 0, -1, 0, 0, 0, 1, -1, 1, 0, -1, 0, 1, 0, -1, 1, -1, 0, 1, -1, 0, 0, 1, -1, 1, 0, -1, 0, 1, 0, -1, 1, -1, 0, 1, -1, 1, 0, -1, 1, -1, 0, 1, 0, -1, 0, 1, -1, 1, 0, 0, -1, 0, 0, 1, -1, 1, 0, -1, 0, 1, 0, -1, 1, -1, 0, 1, -1, 1, 0, -1, 1, -1, 0, 1, 0, -1, 0, 1, -1, 1, 0, 0, -1, 1, 0, -1, 1, -1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..100.

CROSSREFS

Sequence in context: A266243 A266608 A066288 * A080111 A204545 A185116

Adjacent sequences:  A111409 A111410 A111411 * A111413 A111414 A111415

KEYWORD

sign

AUTHOR

N. J. A. Sloane, Nov 12 2005

EXTENSIONS

Definition corrected by N. J. A. Sloane, Feb 14 2018

STATUS

approved

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Last modified July 18 07:10 EDT 2019. Contains 325134 sequences. (Running on oeis4.)