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 2,-1 1,0 2,1 0,-1 -2,-2 or -1,0.
A264490
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 2,-1 1,0 2,1 0,-1 -2,-2 or -1,0.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =1a(4) =1a(5) =4a(6) =1a(7) =10a(8) =12a(9) =12a(10) =1a(11) =8a(12) =36a(13) =16a(14) =25a(15) =1a(16) =35a(17) =108a(18) =212a(19) =214a(20) =52a(21) =1a(22) =42a(23) =324a(24) =788a(25) =2144a(26) =324a(27) =121a(28) =1a(29) =130
External references
- oeis: A264490