%I #10 Jul 07 2024 13:48:14
%S 1,6,564,306096,564505464,2625790073064,27398936076368184,
%T 584616801786680299848,23661396380641487392884216,
%U 1707763221685376355443856875112,208836912138505980452592269085336072,41452742977042741902029728999187937151368,12878287403223722868703002883355321706487115016
%N 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 a(3) = 306096:
%e [ 6, 11, 6]
%e [ 24, 50, 35]
%e [120, 274, 225]
%t a[n_]:=Permanent[Table[Abs[StirlingS1[i+3,j]],{i,n},{j,n}]]; Join[{1},Array[a,12]]
%Y Cf. A000400 (determinant), A048994, A132393, A372343.
%K nonn
%O 0,2
%A _Stefano Spezia_, Jul 06 2024