A270656 a(3n)=a(n), a(3n+1)=a(3n)-a(3(n+1)), a(3n+2)=a(3n)+a(3(n+1)); a(0)=2, a(1)=1.

2, 1, 3, 1, -2, 4, 3, 2, 4, 1, 3, -1, -2, -6, 2, 4, 1, 7, 3, 1, 5, 2, -2, 6, 4, 3, 5, 1, -2, 4, 3, 4, 2, -1, 1, -3, -2, 4, -8, -6, -8, -4, 2, -2, 6, 4, 3, 5, 1, -6, 8, 7, 4, 10, 3, 2, 4, 1, -4, 6, 5, 3, 7, 2, 4, 0, -2, -8, 4, 6, 2, 10, 4, 1, 7, 3, -2, 8, 5, 4

Offset

0,1

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)=2, a(1)=1.

Crossrefs

Sequence in context: A125047 A323420 A331296 * A045898 A303754 A257918

Adjacent sequences: A270653 A270654 A270655 * A270657 A270658 A270659

Keyword

sign,look

Author

Max Barrentine, Mar 20 2016

Status

approved