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 A105833 #5 Jun 18 2018 15:09:55 %S A105833 1,8,9,14,23,10,13,3,16,12,4,5,6,11,2,40,42,27,15,22,37,24,61,33,28, %T A105833 45,7,38,77,48,20,50,30,36,66,26,92,118,82,200,138,47,31,78,109,35,74, %U A105833 57,17,124,96,79,135,46,21,25,34,32,72,44,116,69,95,86,153,98,55,43,134 %N A105833 For n>2, a(n) not appeared previously is such that a(n-1)^2+4*a(n-2)*a(n) is a minimal square, a(1)=1, a(2)=8. %H A105833 Ivan Neretin, <a href="/A105833/b105833.txt">Table of n, a(n) for n = 1..10000</a> %Y A105833 Cf. A105822, A105828-A105836. %K A105833 nonn %O A105833 1,2 %A A105833 _Zak Seidov_, Apr 22 2005