Number of n X n tables where each row represents a permutation of { 1, 2, ..., n } and the column sums are equal, up to permutation of rows.
A356724
Number of n X n tables where each row represents a permutation of { 1, 2, ..., n } and the column sums are equal, up to permutation of rows.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =114a(4) =60024a(5) =1951262760
External references
- oeis: A356724