A140783 - OEIS

%I #3 Mar 30 2012 18:51:58

%S 1,2,3,6,9,9,18,18,27,27,27,27,45,45,45,63,54,54,63,72,54,81,99,90,81,

%T 90,99,99,99,126,117,135,189,198,171,180,171,180,171,180,189,162,189,

%U 207,180,198,207,243,261,243,297,270,243,261,279,288,324,342,315,315

%N Digit sum of A091137(n).

%F a(n)= A007953(A091137(n)). - _R. J. Mathar_, Jul 29 2008

%K nonn,base

%O 0,2

%A _Paul Curtz_, Jul 13 2008

%E Edited and extended by _R. J. Mathar_, Jul 29 2008