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A298376
Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.
0
1, 5, 6, 47, 852, 17749, 682833, 59733814, 9025761348, 2260336865034
OFFSET
1,2
COMMENTS
Diagonal of A298382.
EXAMPLE
Some solutions for n=6
..0..0..1..1..0..0. .0..1..1..0..1..0. .0..1..1..0..1..0. .0..1..0..1..1..1
..1..0..0..1..1..0. .1..1..0..0..1..1. .0..0..1..0..0..0. .0..0..0..1..1..1
..0..0..0..0..0..1. .1..0..1..1..0..0. .1..1..1..1..0..1. .0..1..1..1..0..0
..1..0..0..1..0..1. .1..0..0..1..0..1. .1..0..1..1..1..1. .1..0..1..1..0..1
..0..0..1..1..1..0. .0..1..1..0..0..0. .0..0..1..0..0..1. .0..1..0..1..1..1
..1..0..0..0..0..0. .0..0..0..0..1..0. .0..1..1..1..0..0. .0..0..1..1..0..1
CROSSREFS
Cf. A298382.
Sequence in context: A219516 A273050 A163481 * A269908 A157805 A256291
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 18 2018
STATUS
approved