A232596 Number of (7+1)X(n+1) 0..2 arrays with every element next to itself plus and minus one within the range 0..2 horizontally or antidiagonally, with no adjacent elements equal.

32, 23034, 2322, 1718514, 306022, 144506106, 41969054, 12273587770, 4884387186, 1043763774120, 539685676660, 88770099413126, 56392403717222, 7550561153273170, 5696222151995370, 642331696103563914, 560920693194450480

Offset: 1

Author

R. H. Hardin, Nov 26 2013

Keywords

• nonn

Comments

Row 7 of A232589

Examples

			Some solutions for n=4
..0..1..0..1..0....0..1..0..1..0....0..1..0..1..0....0..1..0..1..0
..2..1..2..1..2....2..1..2..1..2....2..1..2..1..2....2..1..2..1..2
..0..1..0..1..2....0..1..2..1..0....2..1..0..1..2....0..1..0..1..2
..2..1..0..1..0....2..1..0..1..2....0..1..2..1..2....2..1..0..1..2
..0..1..2..1..0....2..1..2..1..0....0..1..0..1..2....2..1..2..1..0
..0..1..0..1..2....2..1..0..1..0....2..1..0..1..0....2..1..2..1..0
..0..1..2..1..0....2..1..2..1..0....0..1..2..1..0....0..1..2..1..2
..2..1..0..1..2....2..1..0..1..2....0..1..2..1..0....2..1..0..1..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210