This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A115745 #4 Mar 14 2015 00:20:40 %S A115745 12,22,35,176,330,2380,2625,2882,3432,3876,4845,8855,9801,12650,14652, %T A115745 15251,21901,26070,52360,61105,66045,84847,111657,137562,156332, %U A115745 197472,230300,254410,260625,270725,287547,295482,351142,359905 %N A115745 Pentagonal numbers (A000326) that are the product of 2 palindromes greater than 1. %e A115745 66045 is the 210th pentagonal number and 66045=111*595. %Y A115745 Cf. A000326, A115683, A115743, A115744. %K A115745 nonn,base %O A115745 1,1 %A A115745 _Giovanni Resta_, Jan 31 2006