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

1,2

Comments

Diagonal of A232589

Links

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

Example

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

Crossrefs

Sequence in context: A107730 A320703 A095419 * A039417 A043240 A044020

Adjacent sequences: A232578 A232579 A232580 * A232582 A232583 A232584

Keyword

nonn

Author

R. H. Hardin, Nov 26 2013

Status

approved