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%I #4 Oct 04 2014 10:44:29
%S 1,2,5,16,38,44,156,583,1359,1470,1556,53537,158476,161656,171657,
%T 190914,371778,382173,615769,1207698,1686537,16943262,88274141,
%U 496329416,765609041,1820198063,2497949426,2850685772,15911875336
%N n(5n-3)/2 is a palindromic heptagonal number.
%H P. De Geest, <a href="http://www.worldofnumbers.com/hepta.htm">Palindromic Heptagonals</a>
%Y Cf. A054910, A000566.
%K nonn,base
%O 1,2
%A _Jeff Heleen_, May 26 2000
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