%I #5 Aug 25 2022 08:34:08
%S 1,1,2,105,58464,1938602560,4023598254840240,823167665449254453563025
%N Number of n X n tables where each row represents a permutation of { 1, 2, ..., n } and the column sums are equal, with the first row being the identity permutation.
%F a(n) = A356722(n) / n!.
%Y Cf. A356722, A356724, A356725.
%K nonn,more
%O 1,3
%A _Max Alekseyev_, Aug 25 2022