A032957 Numbers whose base-7 representation Sum_{i=0..m} d(i)*7^(m-i) has even d(i) for all odd i.

1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 14, 16, 18, 20, 21, 23, 25, 27, 28, 30, 32, 34, 35, 37, 39, 41, 42, 44, 46, 48, 49, 50, 51, 52, 53, 54, 55, 63, 64, 65, 66, 67, 68, 69, 77, 78, 79, 80, 81, 82, 83, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102

Offset

1,2

Links

Table of n, a(n) for n=1..63.

Crossrefs

Sequence in context: A211543 A180711 A363938 * A362132 A210845 A057202

Adjacent sequences: A032954 A032955 A032956 * A032958 A032959 A032960

Keyword

nonn,base

Author

Clark Kimberling

Extensions

Definition corrected by Sean A. Irvine, Nov 17 2020

Status

approved