%I #9 Nov 07 2019 05:15:04
%S 1,1,8,54,13500,3087000,3652264,1157625,456533,166375,4492125,1728000,
%T 394444512000,240827600093696,869479900246125,384557787648000,
%U 90468670208000,83064482131968,13819853214706176,45242839158999552000,22447962513858357000
%N First diagonal of A027518.
%F Numerators of sequence a[n, n] in A=(b[i, j])^4 where b[i, j] = A008284(i, j) / Partitions(i) if j<=i, 0 if j>i.
%K nonn
%O 1,3
%A _Olivier GĂ©rard_