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A316414 Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 0
1, 4, 14, 93, 1265, 33380, 1459806, 110043463, 14254922771, 3155289459645, 1195938340938067, 776257336467287589 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A316420.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..0..1..0. .0..0..1..0..0. .0..0..0..0..0
..0..1..1..0..0. .1..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..1..0..1..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..0..1..0..0. .0..0..0..0..1. .0..0..1..0..1. .0..0..0..0..1
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..1..0..0
CROSSREFS
Cf. A316420.
Sequence in context: A331637 A340024 A190481 * A268689 A299199 A209322
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 02 2018
STATUS
approved

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Last modified June 16 07:19 EDT 2024. Contains 373423 sequences. (Running on oeis4.)