%I A054910
%S A054910 1,7,55,616,3553,4774,60606,848848,4615164,5400045,6050506,7165445617,
%T A054910 62786368726,65331413356,73665056637,91120102119,345546645543,
%U A054910 365139931563,947927729749,3646334336463,7111015101117,717685292586717
%N A054910 Palindromic heptagonal numbers (A000566).
%H A054910 P. De Geest, <a href="http://www.worldofnumbers.com/hepta.htm">Palindromic 
               Heptagonals</a>
%Y A054910 Cf. A054971, A000566.
%Y A054910 Sequence in context: A112243 A083836 A159313 this_sequence A028562 A094656 
               A117993
%Y A054910 Adjacent sequences: A054907 A054908 A054909 this_sequence A054911 A054912 
               A054913
%K A054910 nonn,base
%O A054910 1,2
%A A054910 Jeffrey Heleen (meriadoc(AT)cheshire.net), May 26 2000