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 0,1 0,-1 0,2 1,0 or -1,0.

A264257

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 0,1 0,-1 0,2 1,0 or -1,0.

Terms

    a(0) =4a(1) =10a(2) =9a(3) =29a(4) =33a(5) =25a(6) =89a(7) =157a(8) =180a(9) =64a(10) =260a(11) =1124a(12) =1920a(13) =760a(14) =169a(15) =772a(16) =5468a(17) =23805a(18) =14893a(19) =3653a(20) =441a(21) =2281a(22) =32361a(23) =254393a(24) =397462a(25) =147797a(26) =16401a(27) =1156a(28) =6741a(29) =181644

External references