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 A115679 #2 Mar 30 2012 17:40:35 %S A115679 10,15,21,517,529,671,1513,6241,15251,23129,27161,53297,59701,79091, %T A115679 104977,299911,559411,575051,597557,1560101,2178727,2273641,2390393, %U A115679 2966429,5354893,5429329,5435761,5613197,5664721,5988449,6218521 %N A115679 Brilliant numbers (A078972) whose digit reversal is a pentagonal number (A000326). %e A115679 1513=17*89 is brilliant and 3151 is the 46th pentagonal number. %Y A115679 Cf. A000326, A078972, A115680. %K A115679 nonn,base %O A115679 1,1 %A A115679 _Giovanni Resta_, Jan 31 2006