Number of nX2 arrays containing 2 copies of 0..n-1 with no element 1 greater than its west or southwest neighbor modulo n and the upper left element equal to 0.
A267070
Number of nX2 arrays containing 2 copies of 0..n-1 with no element 1 greater than its west or southwest neighbor modulo n and the upper left element equal to 0.
Terms
- a(0) =1a(1) =0a(2) =2a(3) =44a(4) =1949a(5) =119544a(6) =9966710a(7) =1094087602a(8) =153634294614
External references
- oeis: A267070