A270657 a(3n)=a(n), a(3n+1)=a(3(n+1))-a(3n), a(3n+2)=a(3n)+a(3(n+1)); a(0)=0, a(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

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

Crossrefs

Sequence in context: A329308 A135486 A030187 * A270658 A117278 A215556

Adjacent sequences: A270654 A270655 A270656 * A270658 A270659 A270660

Keyword

sign,look

Author

Max Barrentine, Mar 20 2016

Status

approved