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A237864
Number of (n+1)X(4+1) 0..2 arrays with the upper median plus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one
1
6030, 68830, 811498, 9902380, 115821338, 1360467556, 16245005586, 195628632968, 2309260676524, 27312310344552, 325894030112650, 3898536856894944, 46199441511935170, 548067141567809552, 6532107606070688156
OFFSET
1,1
COMMENTS
Column 4 of A237868
LINKS
EXAMPLE
Some solutions for n=2
..2..2..2..2..1....0..0..1..1..0....0..0..1..2..0....0..0..1..1..1
..1..2..2..1..0....1..1..1..1..1....2..2..2..1..2....1..0..1..0..0
..0..1..0..1..0....1..0..0..1..1....1..0..0..0..1....0..2..1..0..1
CROSSREFS
Sequence in context: A239176 A236975 A206113 * A031821 A203352 A064248
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 14 2014
STATUS
approved