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

A264172

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

Terms

    a(0) =1a(1) =4a(2) =4a(3) =8a(4) =25a(5) =8a(6) =16a(7) =98a(8) =98a(9) =16a(10) =33a(11) =418a(12) =733a(13) =418a(14) =33a(15) =69a(16) =1862a(17) =6017a(18) =6017a(19) =1862a(20) =69a(21) =145a(22) =8007a(23) =50237a(24) =96296a(25) =50237a(26) =8007a(27) =145a(28) =300a(29) =34539

External references