T(n,k) = number of defective 3-colorings of an n X k 0..2 array connected horizontally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.
A229694
T(n,k) = number of defective 3-colorings of an n X k 0..2 array connected horizontally 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) =3a(5) =0a(6) =3a(7) =43a(8) =40a(9) =0a(10) =12a(11) =245a(12) =626a(13) =336a(14) =0a(15) =40a(16) =1171a(17) =5077a(18) =6732a(19) =2304a(20) =0a(21) =120a(22) =5077a(23) =35825a(24) =80757a(25) =62856a(26) =14080a(27) =0a(28) =336a(29) =20691
External references
- oeis: A229694