%I
%S 7,23,29,31,43,47,73,77,83,91,101,103,107,127,143,157,173,199,209,221,
%T 233,241,247,251,257,259,271,307,313,317,343,353,359,373,377,391,409,
%U 431,433,437,439,443,461,467,469,487,497,527,541,563,569,583,589,601
%N Nontrivial numbers in which suffixing or inserting a 0 anywhere yields only composite numbers.
%C This excludes numbers with sum of the digits == 0 mod 3, even numbers, or numbers == 5 (mod 10).
%Y Cf. A070331.
%K base,nonn
%O 0,1
%A _Amarnath Murthy_, May 11 2002
%E More terms from _Sascha Kurz_, Feb 01 2003
