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 A115676 #5 Mar 30 2012 17:40:35 %S A115676 4,9,121,169,400,900,961,968,3481,3721,4000,9000,10201,12100,12167, %T A115676 12544,12769,16384,16900,17161,31684,40000,79507,90000,90601,94249, %U A115676 96100,96721,96800,121000,150544,169000,175616,192200,194672,195112 %N A115676 Powerful(1) numbers (A001694) whose digit reversal is a brilliant number (A078972). %H A115676 <a href="/index/Pow#powerful">Index entries for sequences related to powerful numbers</a> %e A115676 968=2^3*11^2 is powerful and 869=11*79 is brilliant. %Y A115676 Cf. A001694, A078972, A115675. %K A115676 nonn,base %O A115676 1,1 %A A115676 _Giovanni Resta_, Jan 31 2006