T(n,k) = number of defective 3-colorings of an n X k 0..2 array connected horizontally and vertically with exactly two mistakes, and colors introduced in row-major 0..2 order.
A229606
T(n,k) = number of defective 3-colorings of an n X k 0..2 array connected horizontally and vertically 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) =1a(6) =3a(7) =39a(8) =39a(9) =3a(10) =12a(11) =202a(12) =396a(13) =202a(14) =12a(15) =40a(16) =925a(17) =3040a(18) =3040a(19) =925a(20) =40a(21) =120a(22) =3924a(23) =20714a(24) =35182a(25) =20714a(26) =3924a(27) =120a(28) =336a(29) =15795
External references
- oeis: A229606