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A270658 a(3n)=a(n), a(3n+1)=a(3n)+a(3(n+1)), a(3n+2)=a(3n)-a(3(n+1)); a(0)=0, a(1)=1. 1
0, 1, -1, 1, 0, 2, -1, 0, -2, 1, 1, 1, 0, 2, -2, 2, 1, 3, -1, -1, -1, 0, -2, 2, -2, -1, -3, 1, 2, 0, 1, 2, 0, 1, 1, 1, 0, 2, -2, 2, 0, 4, -2, 0, -4, 2, 3, 1, 1, 4, -2, 3, 2, 4, -1, -2, 0, -1, -2, 0, -1, -1, -1, 0, -2, 2, -2, 0, -4, 2, 0, 4, -2, -3, -1, -1, -4, 2, -3, -2, -4, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,6

COMMENTS

Maxima a(<3^n)=A029744(n).

LINKS

Max Barrentine, Table of n, a(n) for n = 0..59048

FORMULA

a(3n)=a(n), a(3n+1)=a(3n)+a(3(n+1)), a(3n+2)=a(3n)-a(3(n+1)); a(0)=0, a(1)=1.

CROSSREFS

Sequence in context: A135486 A030187 A270657 * A117278 A215556 A140082

Adjacent sequences:  A270655 A270656 A270657 * A270659 A270660 A270661

KEYWORD

sign,look

AUTHOR

Max Barrentine, Mar 21 2016

STATUS

approved

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Last modified January 20 18:38 EST 2022. Contains 350472 sequences. (Running on oeis4.)