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A232507
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, diagonally or antidiagonally, with no adjacent elements equal
0
4, 52, 128, 19138, 64290, 105188684, 476578496, 8457919671084, 50905137040126, 9932347839826344524, 79686710905619007242, 170326243514575075459988044, 1825631340786716600141970578, 42650500910965333565149003898471568
OFFSET
1,1
COMMENTS
Diagonal of A232515
EXAMPLE
Some solutions for n=5
..0..1..2..0..1..0....2..1..2..1..2..1....2..1..2..0..1..2....0..1..0..1..0..1
..2..1..2..0..1..2....0..1..2..1..0..1....0..1..2..0..1..0....2..1..0..1..2..1
..2..0..2..0..1..2....0..1..0..1..2..1....2..1..2..0..1..0....0..1..0..1..0..1
..1..0..1..0..1..0....0..1..2..1..0..1....2..1..2..0..1..2....2..1..2..1..0..1
..1..2..1..0..1..0....2..1..0..1..0..1....0..1..2..0..1..0....2..1..0..1..2..1
..1..0..1..2..1..2....0..1..0..1..2..1....2..1..2..0..1..2....0..1..0..1..0..1
CROSSREFS
Sequence in context: A232517 A329009 A110908 * A336428 A298073 A233474
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 25 2013
STATUS
approved