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A300039
Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 4, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
1
8, 2907, 128610, 4532025, 173419447, 6789384478, 262361247480, 10149632583491, 393165011518395, 15223417803313451, 589419698633734436, 22823105070326713081, 883732801229613846760, 34218687812298572827543
OFFSET
1,1
COMMENTS
Column 7 of A300040.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..0..1..1. .0..0..0..0..1..0..1. .0..0..1..1..1..1..0
..0..1..0..1..1..0..1. .0..1..0..1..1..0..1. .0..1..0..1..1..0..0
..0..1..0..0..0..0..0. .0..1..0..1..0..0..1. .0..1..0..0..0..0..1
..0..0..0..1..1..0..1. .0..0..0..1..0..1..0. .0..0..0..1..1..1..0
..0..0..1..1..1..1..1. .0..0..1..0..1..0..1. .0..0..1..1..1..0..1
CROSSREFS
Cf. A300040.
Sequence in context: A298336 A299397 A299227 * A282187 A217270 A137565
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 23 2018
STATUS
approved