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A299566
Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
1
8, 2048, 11807, 91193, 792454, 6974944, 60087975, 521019836, 4532637754, 39406918756, 342638323385, 2980802300789, 25930513111911, 225563854798009, 1962260071727890, 17070767803839838, 148507700765418040
OFFSET
1,1
COMMENTS
Column 7 of A299567.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..0..0..1..0. .0..1..1..1..1..1..0. .0..1..1..1..1..0..0
..0..1..0..1..0..0..1. .0..0..0..0..0..0..0. .0..1..0..0..0..1..0
..0..1..0..1..0..0..1. .1..1..1..1..0..1..0. .1..1..1..1..0..1..1
..0..1..0..0..0..1..0. .0..0..1..0..0..1..0. .0..0..0..0..0..0..1
..0..1..1..0..1..0..1. .0..0..1..1..1..1..0. .0..1..1..1..1..1..0
CROSSREFS
Cf. A299567.
Sequence in context: A297950 A298559 A298769 * A298388 A299306 A299464
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 12 2018
STATUS
approved