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%I #9 Jan 28 2017 13:51:52
%S 0,0,0,64,750,10584,175616,3359232,72900000,1771561000,47692136448,
%T 1409582685888,45392319784448,1582328671875000,59373627899904000,
%U 2386420683693101056,102303226385042448384,4659806991485780193672
%N Fourth column of triangle A055864.
%F a(i)=0 for i=1, 2, 3; a(n) = n^3*(n+1)^(n-4), n >= 4.
%F E.g.f.: (9*W(-x)^2-14*W(-x)^3+3*W(-x)^4-9*x^2-32*x^3-81*x^4)/(72*x), W(x) principal branch of Lambert's function.
%p A055867:=n->n^3*(n+1)^(n-4): 0,0,0,seq(A055867(n), n=4..30); # _Wesley Ivan Hurt_, Jan 27 2017
%Y a(n)=A055864(n, 4). Cf. A000272, A055865, A055070, A055866, A055858.
%K nonn,easy
%O 1,4
%A _Wolfdieter Lang_, Jun 20 2000
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