Number of defective 4-colorings of an nX3 0..3 array connected horizontally, antidiagonally and vertically with exactly two mistakes, and colors introduced in row-major 0..3 order.
A229667
Number of defective 4-colorings of an nX3 0..3 array connected horizontally, antidiagonally and vertically with exactly two mistakes, and colors introduced in row-major 0..3 order.
Terms
- a(0) =1a(1) =61a(2) =1555a(3) =19805a(4) =194575a(5) =1673561a(6) =13271403a(7) =99602405a(8) =718231671a(9) =5024073665a(10) =34312328499a(11) =229845418733
External references
- oeis: A229667