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 A248113 #8 Oct 03 2014 21:13:49
%S A248113 1,2,6,14,37,88,218,515,1226,2848,6566,14997,33483,74406,162422,
%T A248113 351621,751171,1594028
%N A248113 Number of subsets of {1,...,n} containing n and having at least one set partition into 4 blocks with equal element sum.
%e A248113 a(7) = 1: {1,2,3,4,5,6,7}-> 16/25/34/7.
%e A248113 a(8) = 2: {1,2,3,5,6,7,8}-> 17/26/35/8, {1,2,3,4,5,6,7,8}-> 18/27/36/45.
%Y A248113 Column k=4 of A248112.
%K A248113 nonn,more
%O A248113 7,2
%A A248113 _Alois P. Heinz_, Oct 01 2014