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A209106
Number of 7Xn 0..2 arrays with new values 0..2 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors
1
365, 254496, 125526240, 57113932788, 25586970618660, 11437585318270860, 5112092569118325704, 2285013663964828552960, 1021387683873603848380972, 456557468966590708568722520, 204080223921705625484844604564
OFFSET
1,1
COMMENTS
Row 7 of A209100
LINKS
EXAMPLE
Some solutions for n=4
..0..1..0..2....0..1..0..2....0..0..0..0....0..0..0..1....0..0..0..1
..1..2..0..1....2..2..0..1....1..1..1..1....1..2..2..1....2..1..2..2
..1..0..1..2....0..1..2..1....2..2..0..1....2..0..1..2....0..2..0..0
..0..1..2..0....2..1..0..1....0..2..1..0....2..1..2..0....2..0..1..1
..0..2..0..1....1..2..2..2....1..2..0..1....1..2..0..1....2..1..2..1
..0..1..2..0....1..0..0..0....2..0..1..0....1..2..0..2....2..1..0..2
..1..2..0..1....0..1..2..1....0..1..2..0....2..0..1..2....1..2..1..2
CROSSREFS
Sequence in context: A209099 A233017 A233081 * A208257 A223132 A199654
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 05 2012
STATUS
approved