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A299083
Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
0
1, 8, 92, 1617, 46456, 2001653, 129999453, 12899638332, 1967580379354
OFFSET
1,2
COMMENTS
Diagonal of A299089.
EXAMPLE
Some solutions for n=5
..0..1..0..1..0. .0..1..1..1..1. .0..1..0..0..0. .0..0..0..0..0
..0..0..1..0..1. .0..0..0..0..1. .1..1..1..1..0. .1..1..1..1..0
..1..0..0..0..0. .1..0..0..0..1. .0..1..1..0..1. .1..0..0..0..1
..1..0..0..0..1. .1..0..1..0..0. .1..1..1..1..0. .1..0..0..0..0
..0..0..1..0..1. .0..1..1..1..1. .0..1..0..0..0. .0..0..1..0..1
CROSSREFS
Cf. A299089.
Sequence in context: A113353 A081624 A298188 * A184142 A358888 A137159
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 02 2018
STATUS
approved