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A187135
Number of (n+1)X5 0..2 arrays with every 2X2 subblock trace equal to exactly one or two horizontal and vertical neighbor 2X2 subblock traces
1
3249, 182214, 5755698, 201302208, 7020258336, 245891941002, 8616423081600, 301728175130790, 10570455159698376, 370183320491626512, 12967430068901756304, 454182945213312573174, 15908967753084162698652
OFFSET
1,1
COMMENTS
Column 4 of A187140
LINKS
EXAMPLE
Some solutions for 4X5
..0..2..0..0..1....1..2..2..2..0....0..0..1..1..2....1..0..1..0..2
..0..0..0..2..2....1..1..0..0..0....0..1..1..1..0....0..0..1..1..2
..0..0..1..1..0....0..0..0..1..1....0..0..1..1..0....0..0..1..1..2
..0..0..0..1..1....0..0..0..2..1....0..0..1..0..0....0..0..0..2..2
CROSSREFS
Sequence in context: A235412 A048421 A238254 * A185840 A251501 A106722
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 05 2011
STATUS
approved