T(n,k)=Number of nXk 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 diagonally or antidiagonally.

A229380

T(n,k)=Number of nXk 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 diagonally or antidiagonally.

Terms

    a(0) =3a(1) =8a(2) =8a(3) =22a(4) =30a(5) =22a(6) =60a(7) =126a(8) =126a(9) =60a(10) =164a(11) =518a(12) =956a(13) =518a(14) =164a(15) =448a(16) =2138a(17) =6730a(18) =6730a(19) =2138a(20) =448a(21) =1224a(22) =8818a(23) =48490a(24) =78690a(25) =48490a(26) =8818a(27) =1224a(28) =3344a(29) =36374

External references