A031006 a(n)=least k such that base 7 representation of n begins at s(k), where s=A030998.

1, 2, 3, 4, 5, 6, 7, 9, 1, 13, 15, 17, 19, 21, 12, 25, 2, 29, 31, 33, 35, 14, 28, 41, 3, 45, 47, 49, 16, 30, 44, 57, 4, 61, 63, 18, 32, 46, 60, 73, 5, 77, 6, 20, 34, 48, 62, 76, 91, 7, 97, 100, 103, 106, 109, 96, 9, 10, 121, 124, 127, 130, 133, 11

Offset

1,2

Links

Table of n, a(n) for n=1..64.

Crossrefs

Sequence in context: A084689 A374323 A021085 * A031978 A304481 A222254

Adjacent sequences: A031003 A031004 A031005 * A031007 A031008 A031009

Keyword

nonn

Author

Clark Kimberling

Status

approved