T(n,k) = number of defective 3-colorings of an n X k 0..2 array connected horizontally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..2 order.
A229586
T(n,k) = number of defective 3-colorings of an n X k 0..2 array connected horizontally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..2 order.
Terms
- a(0) =0a(1) =1a(2) =0a(3) =2a(4) =6a(5) =0a(6) =6a(7) =28a(8) =40a(9) =0a(10) =16a(11) =116a(12) =264a(13) =224a(14) =0a(15) =40a(16) =444a(17) =1620a(18) =2160a(19) =1152a(20) =0a(21) =96a(22) =1620a(23) =9156a(24) =19764a(25) =16416a(26) =5632a(27) =0a(28) =224a(29) =5724
External references
- oeis: A229586