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%I #4 Mar 31 2012 13:20:08
%S 3,50,675,8820,117600,1632960,23814000,365904000,5927644800,
%T 101189088000,1818030614400,34326452160000,679990671360000,
%U 14108934647808000,306113492805120000,6933770723303424000
%N One half of fourth column of triangle A075181.
%C Also one half of fourth diagonal of unsigned triangle A048594.
%F a(n)= A075181(n+4, 3)/2 = |A048594(n+4, n+1)|/2, n>=0.
%F a(n)= -(n+1)!*S1(n+4, n+1)/2 with S1(n, m) := A008275(n, m) (Stirling1).
%K nonn,easy
%O 0,1
%A _Wolfdieter Lang_, Sep 19, 2002
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