A074290 - OEIS

A074290

Difference between Kolakoski(n)=A000002(n) and 1 (n odd) or 2 (n even).

0, 0, 1, -1, 0, 0, 0, 0, 1, -1, 1, 0, 0, -1, 1, -1, 0, 0, 1, -1, 1, -1, 0, 0, 0, 0, 1, -1, 0, 0, 0, -1, 1, -1, 1, 0, 0, 0, 1, -1, 0, 0, 0, 0, 1, -1, 1, -1, 0, 0, 0, -1, 1, 0, 0, 0, 1, -1, 0, 0, 0, 0, 1, -1, 1, 0, 0, -1, 1, -1, 0, 0, 0, 0, 1, -1, 1, -1, 0, 0, 1

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OFFSET

LINKS

Nathaniel Johnston, Table of n, a(n) for n = 1..10000

EXAMPLE

Kolakoski (A000002): 1,2,2,1,1,2,1,2,... Subtracting 1,2,1,2,1,2,1,2,... we get 0,0,1,-1,0,0,0,0,...

CROSSREFS

Cf. A074291.

Sequence in context: A262684 A373263 A287382 * A091225 A175337 A285031

Adjacent sequences: A074287 A074288 A074289 * A074291 A074292 A074293

KEYWORD

sign,easy

AUTHOR

Jon Perry, Sep 21 2002

EXTENSIONS

Offset corrected by Nathaniel Johnston, May 02 2011

STATUS

approved