Number of 2 X n arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 4.
A264639
Number of 2 X n arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 4.
Terms
- a(0) =1a(1) =3a(2) =28a(3) =400a(4) =7776a(5) =229392a(6) =9082368a(7) =481406976a(8) =30249676800
External references
- oeis: A264639