Number of 4Xn 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, diagonally or antidiagonally, and no adjacent values equal.

A232379

Number of 4Xn 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, diagonally or antidiagonally, and no adjacent values equal.

Terms

    a(0) =1a(1) =230a(2) =4550a(3) =63744a(4) =927706a(5) =14326374a(6) =219597458a(7) =3342549408a(8) =50948669958a(9) =777136688838

External references