Number of nX2 arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 5.
A264690
Number of nX2 arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 5.
Terms
- a(0) =1a(1) =1a(2) =6a(3) =23a(4) =84a(5) =897a(6) =9292a(7) =98776a(8) =1380544a(9) =20573376a(10) =451512320a(11) =8653964800a(12) =238280574976
External references
- oeis: A264690