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 A242688 #4 May 20 2014 15:45:33 %S A242688 1,0,2,0,5,0,10,0,20,0,30,1,53,4,80,11,126,26,182,57,271,114,396,211, %T A242688 574,371,816,626,1165,1021,1649,1610,2330,2480,3278,3725,4553,5495, %U A242688 6374,7988,8823,11441,12259,16166,16866,22656,23314,31387,31911,43170,43822 %N A242688 Number of partitions of n with difference -4 between the number of odd parts and the number of even parts, both counted without multiplicity. %H A242688 Alois P. Heinz, <a href="/A242688/b242688.txt">Table of n, a(n) for n = 20..1000</a> %Y A242688 Column k=-4 of A242618. %K A242688 nonn %O A242688 20,3 %A A242688 _Alois P. Heinz_, May 20 2014