%I #5 Mar 31 2012 13:22:18
%S 11,111,1111,1221,11111,111111,1111111,1221221,11111111,111111111,
%T 1111111111,1221221221,11111111111,111111111111,1111111111111,
%U 1221221221221,11111111111111,111111111111111,1111111111111111
%N k th digit of a(n) is the number of different digits within 1 of k (not including k).
%K nonn,base
%O 0,1
%A _Erich Friedman_