Number of 3Xn 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.
A232378
Number of 3Xn 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) =58a(2) =586a(3) =4404a(4) =32722a(5) =259458a(6) =2046700a(7) =16005328a(8) =125458506a(9) =984034642a(10) =7715900888a(11) =60499523096a(12) =474378832026
External references
- oeis: A232378