Number of nX2 arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 6.
A264707
Number of nX2 arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 6.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =28a(4) =176a(5) =1600a(6) =16128a(7) =124416a(8) =1446336a(9) =35831808a(10) =1074954240a(11) =27136622592a(12) =711858585600
External references
- oeis: A264707