A112673 - OEIS

%I #8 Aug 23 2012 21:57:43

%S 1,2,21,156,2343,131071,797161,45623244

%N Smallest positive integer that has a different number of distinct digits in each of the bases 2 through n.

%D Edwin Clark, Posting to Sequence Fan mailing list, Dec 28 2005

%Y A variant of A112670.

%K nonn,base

%O 2,2

%A _N. J. A. Sloane_, Dec 30 2005

%E a(8) and a(9) from _John W. Layman_, Jan 16 2006