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