Table read by antidiagonals: T(n,k) = number of distinct n X k toroidal 0..2 arrays.

Terms

a(0) =3a(1) =6a(2) =6a(3) =11a(4) =27a(5) =11a(6) =24a(7) =130a(8) =130a(9) =24a(10) =51a(11) =855a(12) =2211a(13) =855a(14) =51a(15) =130a(16) =5934a(17) =44368a(18) =44368a(19) =5934a(20) =130a(21) =315a(22) =44487a(23) =956635a(24) =2691711a(25) =956635a(26) =44487a(27) =315a(28) =834a(29) =341802