%I A057107
%S A057107 1,8,8008,120232021,124060421,161656161,185464581,544721127445,
%T A057107 616947749616,3333169613333,3333802083333,6506939396056,12212500521221,
%U A057107 5466543663456645,3310988011108890133,520752145595541257025
%N A057107 Octagonal palindromes.
%H A057107 P. De Geest, <a href="http://www.worldofnumbers.com/octa.htm">Palindromic 
               Octagonals</a>
%Y A057107 Cf. A057106, A000567.
%Y A057107 Sequence in context: A090494 A079656 A114773 this_sequence A052152 A055308 
               A165429
%Y A057107 Adjacent sequences: A057104 A057105 A057106 this_sequence A057108 A057109 
               A057110
%K A057107 nonn,base
%O A057107 1,2
%A A057107 Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 2000.