Number of n X n 0..3 arrays with the row and column sums nondecreasing.
A202575
Number of n X n 0..3 arrays with the row and column sums nondecreasing.
Terms
- a(0) =4a(1) =90a(2) =15688a(3) =27871870a(4) =550113111784
External references
- oeis: A202575