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A253485
Number of (4+1)X(n+1) 0..2 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically
1
27000, 1066300, 44943722, 1878758740, 78770049974, 3299718630574, 138306215163096, 5795836568371696, 242904782424601668, 10179772843302464230, 426626399166621668992, 17879460458074006160518
OFFSET
1,1
COMMENTS
Row 4 of A253482
LINKS
EXAMPLE
Some solutions for n=1
..0..1....0..1....1..0....1..1....2..0....0..0....2..1....0..0....1..0....1..1
..0..2....1..0....1..2....2..0....1..2....1..2....1..0....1..2....1..2....1..2
..1..0....1..0....1..0....0..1....0..2....0..2....0..2....0..2....2..0....2..0
..2..2....0..2....2..2....2..1....1..1....0..1....1..2....2..0....2..0....0..2
..0..2....0..2....1..2....2..0....2..1....0..0....1..0....0..0....1..1....1..1
CROSSREFS
Sequence in context: A176359 A162144 A305728 * A253480 A186136 A159995
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 02 2015
STATUS
approved