%I A046720
%S A046720 76667,700666007,700000666000007,70000006660000007
%N A046720 Beastly primes (i.e. containing "666", A131645) with 7 at both ends.
%H A046720 R. Ondrejka, <a href="http://www.utm.edu/research/primes/lists/top_ten/
               ">The Top Ten: a Catalogue of Primal Configurations</a>
%Y A046720 Cf. A051003, A131645.
%Y A046720 Sequence in context: A096888 A049026 A104327 this_sequence A152498 A124489 
               A157732
%Y A046720 Adjacent sequences: A046717 A046718 A046719 this_sequence A046721 A046722 
               A046723
%K A046720 base,nonn
%O A046720 1,1
%A A046720 G. L. Honaker, Jr. (honak3r(AT)gmail.com)
%E A046720 Next term is 7_{0}^48_666_{0}^48_7, containing 101 digits.