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A297687
Number of 7Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.
1
128, 2570, 94891, 1955750, 59210634, 1487819051, 41030621948, 1066508741933, 28748828127508, 759564088991329, 20288126990340123, 538493726660721622, 14345913847238205189, 381379710626740656598, 10150876741291095683850
OFFSET
1,1
COMMENTS
Row 7 of A297682.
LINKS
EXAMPLE
Some solutions for n=3
..1..0..0. .1..0..1. .0..1..1. .1..0..0. .1..0..0. .1..0..0. .1..0..1
..0..1..0. .1..0..1. .0..0..0. .1..0..0. .0..0..1. .1..0..0. .1..0..0
..0..0..0. .0..0..0. .0..0..1. .1..1..1. .1..1..1. .0..0..0. .0..0..0
..0..0..1. .0..0..1. .0..0..1. .0..0..1. .0..0..1. .1..0..0. .0..0..0
..1..0..0. .0..0..0. .0..1..1. .0..0..0. .1..0..0. .1..0..0. .0..0..0
..1..0..1. .0..0..0. .1..0..1. .1..0..1. .0..0..1. .0..0..0. .0..0..1
..0..0..0. .1..0..0. .1..0..0. .1..0..1. .0..0..1. .0..0..1. .0..0..0
CROSSREFS
Cf. A297682.
Sequence in context: A231306 A236209 A283548 * A221662 A250282 A019564
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 03 2018
STATUS
approved