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%I #6 May 28 2016 20:03:30
%S 1,1,1,1,2,3,4,8,12,16,32,48,64,160,288,448,1024,1728,2560,5632,9216,
%T 13312,33280,59904,93184,212992,359424,532480,1171456,1916928,2768896,
%U 6922240,12460032,19382272,44302336,74760192,110755840,243662848,398721024,575930368
%N Number of permutations of n elements divided by the number of ternary heaps on n+1 elements.
%H Alois P. Heinz, <a href="/A273731/b273731.txt">Table of n, a(n) for n = 0..1000</a>
%H Wikipedia, <a href="https://en.wikipedia.org/wiki/D-ary_heap">D-ary heap</a>
%F a(n) = A000142(n)/A178008(n+1).
%Y Column k=3 of A273730.
%Y Cf. A000142, A178008.
%K nonn
%O 0,5
%A _Alois P. Heinz_, May 28 2016
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