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A183749
Number of (n+1) X (n+1) 0..3 arrays with equal numbers of 2 X 2 subblocks with sum over 6 and with sum under 6.
0
44, 35524, 347812760, 71621126116404, 240125119409366897752
OFFSET
1,1
COMMENTS
Diagonal of A183756.
EXAMPLE
Some solutions for 3 X 3:
..1..1..0....3..0..0....3..3..1....0..1..0....3..3..2....2..1..3....0..3..0
..3..3..0....2..2..0....1..0..3....2..3..0....1..2..0....1..3..1....3..1..1
..2..0..1....1..1..3....3..1..1....0..3..0....0..2..1....0..0..1....1..2..1
...
...P..M.......P..M.......P..P.......E..M.......P..P.......P..P.......P..M...
...P..M.......E..E.......M..M.......P..E.......M..M.......M..M.......P..M...
CROSSREFS
Sequence in context: A180842 A172753 A268425 * A119096 A131484 A365646
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 06 2011
STATUS
approved