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A298188
Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 king-move adjacent elements, with upper left element zero.
0
1, 8, 92, 1609, 45143, 1863192, 114087318, 10570868743, 1486791095951
OFFSET
1,2
COMMENTS
Diagonal of A298195.
EXAMPLE
Some solutions for n=5
..0..1..1..0..1. .0..0..0..0..0. .0..0..1..1..1. .0..1..1..0..1
..1..1..0..1..1. .0..1..1..1..1. .0..1..1..0..0. .1..1..0..0..1
..1..0..1..0..1. .1..0..0..0..0. .1..0..0..0..1. .1..0..1..1..0
..0..1..0..0..1. .1..0..1..1..1. .0..0..0..1..0. .0..0..1..0..0
..0..0..1..0..1. .0..0..0..1..0. .0..1..1..0..1. .1..1..1..1..0
CROSSREFS
Cf. A298195.
Sequence in context: A305967 A113353 A081624 * A299083 A184142 A358888
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 14 2018
STATUS
approved