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 1,1.

A264110

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 1,1.

Terms

    a(0) =2a(1) =9a(2) =4a(3) =45a(4) =40a(5) =8a(6) =144a(7) =441a(8) =169a(9) =16a(10) =512a(11) =2745a(12) =4410a(13) =714a(14) =32a(15) =1936a(16) =21025a(17) =54756a(18) =44100a(19) =3025a(20) =64a(21) =7381a(22) =167464a(23) =911754a(24) =1086300a(25) =441000a(26) =12816a(27) =128a(28) =27225a(29) =1336336

External references