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

A235449

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

Terms

    a(0) =16a(1) =58a(2) =58a(3) =208a(4) =382a(5) =208a(6) =742a(7) =2476a(8) =2476a(9) =742a(10) =2644a(11) =15936a(12) =28962a(13) =15936a(14) =2644a(15) =9418a(16) =102376a(17) =335898a(18) =335898a(19) =102376a(20) =9418a(21) =33544a(22) =657290a(23) =3886120a(24) =7017768a(25) =3886120a(26) =657290a(27) =33544a(28) =119470a(29) =4219322

External references