T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change 1,0 1,1 0,-1 or -1,1.
A264569
T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having directed index change 1,0 1,1 0,-1 or -1,1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =1a(6) =2a(7) =4a(8) =4a(9) =2a(10) =2a(11) =8a(12) =10a(13) =8a(14) =2a(15) =4a(16) =24a(17) =44a(18) =31a(19) =16a(20) =3a(21) =4a(22) =64a(23) =143a(24) =192a(25) =79a(26) =32a(27) =4a(28) =7a(29) =160
External references
- oeis: A264569