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A374360 a(n) is the permanent of the n X n matrix whose generic element is abs(s(i+3,j)) where 1<= i,j <= n and s(r,c) is a Stirling number of the 1st kind.

%I A374360 #10 Jul 07 2024 13:48:14
%S A374360 1,6,564,306096,564505464,2625790073064,27398936076368184,
%T A374360 584616801786680299848,23661396380641487392884216,
%U A374360 1707763221685376355443856875112,208836912138505980452592269085336072,41452742977042741902029728999187937151368,12878287403223722868703002883355321706487115016
%N A374360 a(n) is the permanent of the n X n matrix whose generic element is abs(s(i+3,j)) where 1<= i,j <= n and s(r,c) is a Stirling number of the 1st kind.
%e A374360 a(3) = 306096:
%e A374360   [  6,  11,   6]
%e A374360   [ 24,  50,  35]
%e A374360   [120, 274, 225]
%t A374360 a[n_]:=Permanent[Table[Abs[StirlingS1[i+3,j]],{i,n},{j,n}]]; Join[{1},Array[a,12]]
%Y A374360 Cf. A000400 (determinant), A048994, A132393, A372343.
%K A374360 nonn
%O A374360 0,2
%A A374360 _Stefano Spezia_, Jul 06 2024