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 A065185 #4 Jul 13 2016 16:07:44 %S A065185 0,1,2,-2,-1,3,4,5,6,-4,-3,7,-6,8,-5,9,10,11,12,-8,-7,13,14,15,16,-10, %T A065185 -9,17,-12,18,-11,19,20,-13,21,22,23,-15,24,-16,25,-14,-17,26,27,28, %U A065185 29,30,-19,-18,31,32,33,-21,34,-22,35,-20,-23,36,37,38,39,-24,40,41,-25,42,-26,43,-27,44,45,46,-29,47,-30,-28,48 %N A065185 The delta sequence p(i)-i for the "Greedy Queens" permutation A065188. Each queen at file n is situated at rank n+a(n). %H A065185 Alois P. Heinz, <a href="/A065185/b065185.txt">Table of n, a(n) for n = 1..10000</a> %p A065185 [seq(A065188[n]-n,n=1..196)]; %K A065185 sign %O A065185 1,3 %A A065185 _Antti Karttunen_, Oct 19 2001