T(n,k) = number of defective 3-colorings of an n X k 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.
A229637
T(n,k) = number of defective 3-colorings of an n X k 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =6a(5) =0a(6) =3a(7) =40a(8) =39a(9) =0a(10) =12a(11) =122a(12) =244a(13) =202a(14) =0a(15) =40a(16) =488a(17) =1109a(18) =1496a(19) =925a(20) =0a(21) =120a(22) =1608a(23) =6031a(24) =10227a(25) =8800a(26) =3924a(27) =0a(28) =336a(29) =5392
External references
- oeis: A229637