T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having index change +-(.,.) 0,0 0,2 or 1,2.

A264131

T(n,k)=Number of (n+1)X(k+1) arrays of permutations of 0..(n+1)*(k+1)-1 with each element having index change +-(.,.) 0,0 0,2 or 1,2.

Terms

    a(0) =1a(1) =5a(2) =1a(3) =25a(4) =13a(5) =1a(6) =80a(7) =169a(8) =34a(9) =1a(10) =256a(11) =1040a(12) =1156a(13) =89a(14) =1a(15) =976a(16) =6400a(17) =13600a(18) =7921a(19) =233a(20) =1a(21) =3721a(22) =53280a(23) =160000a(24) =178000a(25) =54289a(26) =610a(27) =1a(28) =13725a(29) =443556

External references