A232380 Number of 5Xn 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.
1, 934, 36574, 957232, 27133338, 825606450, 24945468636, 747913169216, 22460676406974, 675143834470462, 20291549259837168, 609804313253059260, 18326215546732616794, 550758040677362295570, 16551923665278410826856
Offset: 1
Keywords
Examples
Some solutions for n=3 ..2..1..0....1..2..3....1..2..1....2..3..2....0..3..0....0..1..2....0..1..0 ..0..3..2....3..0..3....3..2..3....2..1..2....2..1..0....2..3..2....0..3..2 ..0..1..0....1..0..3....3..0..3....3..0..3....0..3..2....2..1..0....2..3..0 ..0..3..0....1..2..3....1..0..3....1..0..1....0..1..0....2..3..2....2..1..2 ..2..3..2....1..0..1....1..2..3....1..2..3....2..3..0....0..1..2....0..3..2
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Comments