login
k th digit of a(n) is the number of different digits within 1 of k (not including k).
0

%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_