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
- oeis: A181194