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A206230
Number of (n+1)X(n+1) 0..3 arrays with every 2X3 or 3X2 subblock having exactly two equal edges, and new values 0..3 introduced in row major order
1
15, 256, 4456, 283728, 10915392, 1448239080, 649065145152, 203396423662488, 222950396746461504, 842104767130879914696, 2305567526828592241306992, 22136848571138455592306188104, 737206270850592131066195723493312
OFFSET
1,1
COMMENTS
Diagonal of A206238
LINKS
EXAMPLE
Some solutions for n=4
..0..1..0..0..1....0..1..0..0..1....0..0..1..2..0....0..1..2..1..0
..2..0..0..1..0....0..0..2..0..0....0..3..2..2..0....1..2..2..1..1
..0..0..1..0..0....1..0..0..3..0....3..2..2..0..1....2..2..0..2..2
..2..2..0..0..1....2..3..0..0..1....2..2..3..1..1....0..0..2..2..3
..3..2..0..2..0....2..2..3..0..0....2..3..1..1..0....3..0..2..3..0
CROSSREFS
Sequence in context: A027775 A334995 A099273 * A209263 A180832 A361185
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 05 2012
STATUS
approved