A031018 Write 2n-1 in base 7 and juxtapose.

1, 3, 5, 1, 0, 1, 2, 1, 4, 1, 6, 2, 1, 2, 3, 2, 5, 3, 0, 3, 2, 3, 4, 3, 6, 4, 1, 4, 3, 4, 5, 5, 0, 5, 2, 5, 4, 5, 6, 6, 1, 6, 3, 6, 5, 1, 0, 0, 1, 0, 2, 1, 0, 4, 1, 0, 6, 1, 1, 1, 1, 1, 3, 1, 1, 5, 1, 2, 0, 1, 2, 2, 1, 2, 4, 1, 2, 6, 1, 3, 1, 1, 3, 3, 1, 3, 5, 1, 4, 0

Offset

1,2

Links

Table of n, a(n) for n=1..90.

Crossrefs

Sequence in context: A111823 A113039 A093016 * A146525 A196611 A011353

Adjacent sequences: A031015 A031016 A031017 * A031019 A031020 A031021

Keyword

nonn

Author

Clark Kimberling

Status

approved