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A297319
Number of 6Xn 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 1 or 2 neighboring 1s.
1
1, 616, 16389, 223995, 6623719, 200646607, 4893232934, 123820581049, 3282367305458, 85515734535996, 2212616825808470, 57500163901287398, 1495338053514246125, 38856248352062385594, 1009626165673776079481
OFFSET
1,2
COMMENTS
Row 6 of A297314.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..0..0..0..0. .0..0..0..0..0. .0..1..0..0..1. .0..0..0..1..1
..0..1..1..0..1. .0..0..1..1..0. .1..1..0..1..1. .0..0..0..1..0
..1..0..1..1..0. .0..1..0..1..1. .0..1..0..1..1. .0..1..0..0..0
..1..1..0..0..1. .1..1..1..0..1. .1..1..0..1..1. .1..1..1..1..1
..0..1..1..1..0. .0..0..0..1..1. .1..0..0..0..0. .0..0..0..0..0
CROSSREFS
Cf. A297314.
Sequence in context: A260367 A218847 A219426 * A220391 A219415 A332161
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 28 2017
STATUS
approved