Number of n X n 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or vertically.
A232362
Number of n X n 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or vertically.
Terms
- a(0) =1a(1) =23a(2) =2411a(3) =1704619a(4) =8716796353
External references
- oeis: A232362