Number of defective 4-colorings of an n X 5 0..3 array connected horizontally, antidiagonally and vertically with exactly two mistakes, and colors introduced in row-major 0..3 order.
A229669
Number of defective 4-colorings of an n X 5 0..3 array connected horizontally, antidiagonally and vertically with exactly two mistakes, and colors introduced in row-major 0..3 order.
Terms
- a(0) =12a(1) =5048a(2) =194575a(3) =4331928a(4) =78681904a(5) =1289285440a(6) =19833096240a(7) =292113020848
External references
- oeis: A229669