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A233674
Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 6
0
48, 928, 28544, 2442208, 365293440, 169016684160, 127711201373696, 328477373854376960, 1247863750672409103360, 17890273200647565664976896
OFFSET
1,1
COMMENTS
Diagonal of A233682
EXAMPLE
Some solutions for n=3
..1..0..0..2....0..0..0..1....0..2..3..2....0..0..2..0....2..1..1..1
..1..2..1..2....2..1..2..2....0..1..1..2....2..1..1..0....2..0..2..0
..1..0..1..3....2..0..0..1....0..2..0..0....2..0..2..0....1..0..1..1
..2..0..2..3....2..1..2..1....1..1..1..2....1..0..1..1....2..0..2..3
CROSSREFS
Sequence in context: A233959 A233177 A014703 * A293778 A089903 A274806
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 14 2013
STATUS
approved