T(n,k)=Number of (n+2)X(k+2) arrays of permutations of 0..(n+2)*(k+2)-1 with each element moved 0 or 1 knight moves and equal numbers of elements advancing and retreating in the array numbered in row major order.
A263706
T(n,k)=Number of (n+2)X(k+2) arrays of permutations of 0..(n+2)*(k+2)-1 with each element moved 0 or 1 knight moves and equal numbers of elements advancing and retreating in the array numbered in row major order.
Terms
- a(0) =49a(1) =475a(2) =569a(3) =3588a(4) =18995a(5) =4020a(6) =33265a(7) =474101a(8) =437533a(9) =38769a(10) =292865a(11) =14115520a(12) =30745811a(13) =13341380a(14) =355145a(15) =2600010a(16) =452888405a(17) =2977192536a(18) =3002676432a(19) =414860767a(20) =3191484a(21) =23355021a(22) =14143461755
External references
- oeis: A263706