Number of n X 7 matrices containing a permutation of 1..n*7 in increasing order rowwise, columnwise, diagonally and (downwards) antidiagonally.

A181194

Number of n X 7 matrices containing a permutation of 1..n*7 in increasing order rowwise, columnwise, diagonally and (downwards) antidiagonally.

Terms

    a(0) =1a(1) =132a(2) =49100a(3) =25097600a(4) =14083834704

External references