A102826 "True already", base 4, start 0: a(n) is the least integer such that the sequence up to a(n-1) written in base 4 contains floor(a(n)/4) copies of the digit a(n) % 4, with a(0) = 0.

0, 1, 2, 3, 4, 6, 7, 8, 11, 12, 16, 18, 19, 22, 23, 26, 27, 31, 32, 39, 40, 43, 44, 48, 55, 56, 60, 64, 69, 70, 74, 75, 79, 86, 87, 90, 91, 95, 96, 103, 104, 107, 108, 112, 119, 120, 124, 128, 138, 139, 143, 151, 152, 155, 156, 160, 163, 167, 171, 172, 176

Offset

0,3

References

Inspired by discussion of "True so far" from Eric Angelini (A102357).

Links

Table of n, a(n) for n=0..60.

Crossrefs

Cf. A102823-A102830, A102357.

Sequence in context: A050116 A061985 A352804 * A191381 A051602 A348469

Adjacent sequences: A102823 A102824 A102825 * A102827 A102828 A102829

Keyword

nonn,easy,base

Author

Hugo van der Sanden, Feb 26 2005

Status

approved