T(n,k)=Number of nXk 0..3 arrays with rows and antidiagonals unimodal.

Terms

a(0) =4a(1) =16a(2) =16a(3) =50a(4) =256a(5) =64a(6) =130a(7) =2500a(8) =4096a(9) =256a(10) =296a(11) =16900a(12) =110116a(13) =65536a(14) =1024a(15) =610a(16) =87616a(17) =1658703a(18) =4816168a(19) =1048576a(20) =4096a(21) =1163a(22) =372100a(23) =16979881a(24) =151310069a(25) =210163664a(26) =16777216a(27) =16384a(28) =2083a(29) =1352569