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 A114927 #10 Oct 02 2013 15:12:50
%S A114927 41,291552,692133,2946762,8231796,21732508611,27892659612
%N A114927 Numbers n such that sigma(n)=3*reversal(n).
%C A114927 No more terms through 10^9. - _Ryan Propper_, Jan 08 2007
%C A114927 a(8) > 10^12. - _Giovanni Resta_, Oct 28 2012
%t A114927 Do[If[DivisorSigma[1, n] == 3*FromDigits[Reverse[IntegerDigits[n]]], Print[n]], {n, 20000000}]
%Y A114927 Cf. A069216, A105324, A114928.
%K A114927 base,more,nonn
%O A114927 1,1
%A A114927 _Farideh Firoozbakht_, Jan 28 2006
%E A114927 a(6)-a(7) from _Donovan Johnson_, Dec 21 2008