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 -1,-2 or 0,2.

A264313

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 -1,-2 or 0,2.

Terms

    a(0) =1a(1) =6a(2) =1a(3) =20a(4) =20a(5) =1a(6) =52a(7) =139a(8) =68a(9) =1a(10) =140a(11) =735a(12) =1032a(13) =240a(14) =1a(15) =392a(16) =4103a(17) =11206a(18) =7821a(19) =832a(20) =1a(21) =1117a(22) =24153a(23) =130041a(24) =167348a(25) =58589a(26) =2896a(27) =1a(28) =3155a(29) =137703

External references