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%I #4 Oct 18 2017 19:14:47
%S 1,6,36,172,813,3576,15647,66493,282063,1181554,4951592,20648077,
%T 86254964,359920291,1505749933,6305449303,26485669295,111485395542,
%U 470834817242,1993891398761,8472782274541,36113575773694,154458283438023,662716935400473,2853093892389838
%N Number of sets of nonempty words with a total of n letters over quinary alphabet containing the fifth letter such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.
%H Alois P. Heinz, <a href="/A293886/b293886.txt">Table of n, a(n) for n = 5..1000</a>
%F a(n) = A293744(n) - A293743(n).
%Y Column k=5 of A293113.
%Y Cf. A293743, A293744.
%K nonn
%O 5,2
%A _Alois P. Heinz_, Oct 18 2017
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