Beastly (or hateful) numbers: numbers containing the string 666 in their decimal expansion.
666, 1666, 2666, 3666, 4666, 5666, 6660, 6661, 6662, 6663, 6664, 6665, 6666, 6667
1 seqfan posts
Tue Oct 18 02:39:55 CEST 2011 [seqfan] Re: SIAM Rev problem 89-19