%I #5 Mar 30 2012 18:35:23
%S 2,3,5,23,25,32,52,56,254,256,322,326,524,566,2564,3262,5246,5662,
%T 25642
%N Every prefix prime in base 7 (written in base 7).
%K nonn,base,fini,full
%O 1,1
%A _David W. Wilson_