A065367 Replace 3^k with (-3)^k in balanced ternary expansion of n.

1, -4, -3, -2, 11, 12, 13, 8, 9, 10, 5, 6, 7, -34, -33, -32, -37, -36, -35, -40, -39, -38, -25, -24, -23, -28, -27, -26, -31, -30, -29, -16, -15, -14, -19, -18, -17, -22, -21, -20, 101, 102, 103, 98, 99, 100, 95, 96, 97, 110, 111, 112, 107, 108, 109, 104, 105, 106, 119, 120, 121, 116, 117, 118, 113

Offset

1,2

Comments

Notation: (3)< n >(-3)

Links

Table of n, a(n) for n=1..65.

Example

5 = +1(9)-1(3)-1(1) -> +1(9)-1(-3)-1(1) = 11 = a(5)

Crossrefs

A053985, A065364, A065366, A065369

Sequence in context: A058509 A105109 A227182 * A333780 A033882 A062111

Adjacent sequences: A065364 A065365 A065366 * A065368 A065369 A065370

Keyword

base,easy,sign

Author

Marc LeBrun, Oct 31 2001

Status

approved