Number of defective 4-colorings of an n X 4 0..3 array connected horizontally, antidiagonally and vertically with exactly one mistake, and colors introduced in row-major 0..3 order.
A229475
Number of defective 4-colorings of an n X 4 0..3 array connected horizontally, antidiagonally and vertically with exactly one mistake, and colors introduced in row-major 0..3 order.
Terms
- a(0) =6a(1) =248a(2) =3328a(3) =36116a(4) =360912a(5) =3443856a(6) =31875248a(7) =288634368a(8) =2570642816a(9) =22599003712a(10) =196602867456
External references
- oeis: A229475