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 A082483 #6 Mar 30 2012 18:39:17 %S A082483 21,34,50,69,90,113,138,165,194,226,261,298,337,378,421,466,513,562, %T A082483 613,666,721,778,837,898,962,1029,1098,1169,1242,1317,1394,1473,1554, %U A082483 1637,1722,1809,1898,1989,2082,2177,2274,2373,2474,2577,2682,2789,2898 %N A082483 Numbers n such that 1/(5-s(n)) is an integer where s(k)=sum(i=1,k,1/2^floor(sqrt(i))). %F A082483 s(a(n))=5-1/2^n %K A082483 nonn %O A082483 1,1 %A A082483 _Benoit Cloitre_, Apr 27 2003