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A318220
Number of nX6 0..1 arrays with every element unequal to 2, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
1
0, 16, 413, 13722, 407121, 12458503, 381426500, 11669008142, 357007586982, 10922535527287, 334171256230583, 10223857024851046, 312795489864911224, 9569873151878592164, 292787060908281364545, 8957721988741466827281
OFFSET
1,2
COMMENTS
Column 6 of A318222.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..1..0..1. .0..1..0..0..0..1. .0..1..0..0..1..0. .0..1..0..1..1..0
..1..1..0..0..1..0. .1..1..1..1..0..1. .1..1..0..1..1..0. .1..1..1..0..1..0
..0..0..1..1..1..0. .0..1..0..0..0..0. .0..0..0..0..1..1. .0..1..0..0..1..1
..1..1..0..0..1..0. .1..1..1..0..1..0. .1..1..0..0..0..0. .1..1..1..0..1..0
..0..1..1..1..0..1. .0..0..1..1..0..1. .0..0..1..1..0..1. .0..0..1..1..0..1
CROSSREFS
Cf. A318222.
Sequence in context: A172205 A209362 A338800 * A035275 A173947 A264169
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 21 2018
STATUS
approved