A109167 a(n) = least nonnegative integer such that n appears a(n) times.

1, 2, 1, 0, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 18

Offset

0,2

Comments

The concatenation of the first four terms' (decimal) digits gives 1210 = A046043(1).

Links

Table of n, a(n) for n=0..78.

Example

Note that we do not need to specify a(0) explicitly. Indeed, a(0) = 1 as it cannot be 0. a(1) = 2 as it cannot be 0 or 1.

Crossrefs

Cf. A046043 (Autobiographical numbers), A001462 (Golomb's sequence).

Sequence in context: A052922 A181930 A256797 * A066426 A100887 A073592

Adjacent sequences: A109164 A109165 A109166 * A109168 A109169 A109170

Keyword

nonn

Author

Rick L. Shepherd, Jun 20 2005

Status

approved