%I A057106
%S A057106 1,2,52,6331,6431,7341,7863,426115,453486,1054067,1054167,1472746,
%T A057106 2017631,42687015,1050553507,13175129925,335038979077,1400295262095,
%U A057106 5847307263801,51722791547842,78849864240621,105802560494387
%N A057106 Numbers n such that n(3n-2) is an octagonal palindrome.
%H A057106 P. De Geest, <a href="http://www.worldofnumbers.com/octa.htm">Palindromic 
               Octagonals</a>
%Y A057106 Cf. A057107, A000567.
%Y A057106 Sequence in context: A101930 A099882 A121293 this_sequence A080973 A079179 
               A000654
%Y A057106 Adjacent sequences: A057103 A057104 A057105 this_sequence A057107 A057108 
               A057109
%K A057106 nonn,base
%O A057106 1,2
%A A057106 Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 2000.
%E A057106 More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Apr 17 2008