270656150

Appears in sequences

• Number of n X n matrices over GF(5) under row and column permutations.at n=4A052272
• Number of 4 X 4 matrices with entries mod n, up to row and column permutation.at n=4A058002
• Number A(n,k) of inequivalent n X n matrices with entries from [k], where equivalence means permutations of rows or columns; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=49A246106