Number of 4 X n matrices containing a permutation of 1..4*n in increasing order rowwise, columnwise, diagonally and (downwards) antidiagonally.
A181198
Number of 4 X n matrices containing a permutation of 1..4*n in increasing order rowwise, columnwise, diagonally and (downwards) antidiagonally.
Terms
- a(0) =1a(1) =1a(2) =8a(3) =169a(4) =6392a(5) =352184a(6) =25097600a(7) =2152061145a(8) =212012802584
External references
- oeis: A181198