Nontrivial (i.e. having no nontrivial factors with this property) integers which do not divide any terms of A000213.
27, 91, 103, 163, 199, 203, 221, 247, 305, 371, 377, 397, 421, 551, 559, 757, 779
1 seqfan posts
Fri Dec 26 23:06:26 CET 2008 [seqfan] Some items inspired by appearances of 2009 in the OEIS