Number of defective 3-colorings of an n X 3 0..2 array connected horizontally and vertically with exactly two mistakes, and colors introduced in row-major 0..2 order.
A229601
Number of defective 3-colorings of an n X 3 0..2 array connected horizontally and vertically with exactly two mistakes, and colors introduced in row-major 0..2 order.
Terms
- a(0) =1a(1) =39a(2) =396a(3) =3040a(4) =20714a(5) =131345a(6) =792929a(7) =4618048a(8) =26165860a(9) =145058507a(10) =790042315a(11) =4239980962a(12) =22473980838a(13) =117862612005a(14) =612450538677
External references
- oeis: A229601