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 A276036 #4 Aug 16 2016 20:46:29 %S A276036 1,4,5,6,2,3,9,12,13,14,8,15,7,18,11,20,10,26,17,25,19,27,30,21,23,29, %T A276036 31,22,16,41,45,32,34,24,38,36,39,33,37,46,43,28,35,42,56,55,57,50,51, %U A276036 62,53,60,64,71,58,69,40,74,68,54,63,80,65,82,73,47,87 %N A276036 Numbers on the North-South axis of A274640 in order of appearance. %C A276036 Conjectured to be a permutation of the natural numbers. %H A276036 Alois P. Heinz, <a href="/A276036/b276036.txt">Table of n, a(n) for n = 1..2000</a> %Y A276036 Cf. A274640. %Y A276036 Alternate terms of A274926 and A274930 (starting with a single 1). %K A276036 nonn %O A276036 1,2 %A A276036 _Alois P. Heinz_, Aug 16 2016