T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise.

A235437

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the difference between each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise.

Terms

    a(0) =81a(1) =583a(2) =583a(3) =3987a(4) =10241a(5) =3987a(6) =26091a(7) =169041a(8) =169041a(9) =26091a(10) =167095a(11) =2616323a(12) =6802225a(13) =2616323a(14) =167095a(15) =1054515a(16) =39122513a(17) =253925273a(18) =253925273a(19) =39122513a(20) =1054515a(21) =6595119a(22) =570624077a(23) =9047860107a(24) =23147332121a(25) =9047860107a(26) =570624077

External references