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 A287042 #7 May 20 2017 21:55:25 %S A287042 7,234,5390,113126,2371845,51607716,1185214452,28937407212, %T A287042 752882360571,20870819679150,615571317411570,19277508315195090, %U A287042 639508594242409065,22419339547774938120,828617069130919072200,32214653364317860157400,1314580813236368248272975,56192348229571762396268850 %N A287042 Column 2 of A286783. %H A287042 Gheorghe Coserea, <a href="/A287042/b287042.txt">Table of n, a(n) for n = 3..212</a> %Y A287042 Cf. A286783. %K A287042 nonn %O A287042 3,1 %A A287042 _Gheorghe Coserea_, May 19 2017