A004071 Start with a(0)=1; replace each i with 12...i, then add 1 to final digit.

1, 2, 13, 1124, 11121235, 1111211212312346, 11111211121121231121231234123457, 1111112111121112112123111211212311212312341121231234123451234568

Offset

0,2

Links

Table of n, a(n) for n=0..7.

T. Kubo and R. Vakil, On Conway's recursive sequence, Discr. Math. 152 (1996), 225-252.

Index entries for sequences related to final digits of numbers

Crossrefs

Sequence in context: A175513 A064185 A069109 * A174363 A158026 A103641

Adjacent sequences: A004068 A004069 A004070 * A004072 A004073 A004074

Keyword

nonn,base

Author

N. J. A. Sloane

Status

approved