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%I #23 Oct 31 2018 19:40:08
%S 666,1666,2666,3666,4666,5666,6660,6661,6662,6663,6664,6665,6666,6667,
%T 6668,6669,7666,8666,9666,10666,11666,12666,13666,14666,15666,16660,
%U 16661,16662,16663,16664,16665,16666,16667,16668,16669,17666,18666
%N Beastly (or hateful) numbers: numbers containing the string 666 in their decimal expansion.
%H Jens Kruse Andersen, <a href="/A051003/b051003.txt">Table of n, a(n) for n = 1..1000</a>
%H Tony Padilla and Brady Haran, <a href="https://www.youtube.com/watch?v=zk_Q9y_LNzg">The Most Evil Number</a>, Numberphile video (2018)
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/BeastNumber.html">Beast Number</a>
%t Select[Range[18666], ! StringFreeQ[ToString[#], "666"] &] (* _Arkadiusz Wesolowski_, Sep 08 2011 *)
%Y Cf. A131645, A057564, A002282, A138563, A043515, A046720, A186086.
%K nonn,less,easy,base
%O 1,1
%A _Eric W. Weisstein_