A232581 Number of (n+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.

0, 34, 42, 6406, 14398, 12486510, 41969054, 255585490674, 1079163298316, 54986925928451542, 282118997571150630, 124284077001521518573820, 748107850423156991103192, 2951299844035743073442451486916

Offset: 1

Author

R. H. Hardin, Nov 26 2013

Keywords

• nonn

Comments

Diagonal of A232589

Examples

			Some solutions for n=5
..0..1..2..0..1..2....2..1..2..0..1..2....2..1..2..1..0..2....0..1..2..0..1..2
..2..0..1..0..1..0....0..1..2..0..1..0....0..1..0..2..1..0....0..1..2..0..1..2
..1..2..1..2..1..0....2..0..1..0..1..2....0..1..0..2..1..0....2..0..1..0..1..2
..1..0..1..2..1..0....1..2..1..2..1..2....2..1..0..2..1..2....1..2..1..0..1..0
..1..2..1..0..1..0....1..0..1..0..1..2....0..2..1..0..1..2....1..0..1..0..1..2
..1..0..1..2..1..0....1..2..1..0..1..0....1..0..1..2..1..0....1..2..1..0..1..2
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..17