T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no element 1 greater than its west or northeast neighbor modulo n and the upper left element equal to 0.

A266867

T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no element 1 greater than its west or northeast neighbor modulo n and the upper left element equal to 0.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =0a(5) =2a(6) =1a(7) =0a(8) =4a(9) =6a(10) =1a(11) =0a(12) =17a(13) =72a(14) =24a(15) =1a(16) =0a(17) =57a(18) =1304a(19) =2760a(20) =120a(21) =1a(22) =0a(23) =207a(24) =31501a(25) =530368a(26) =154240a(27) =720a(28) =1a(29) =0

External references