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A299553
Number of nX7 0..1 arrays with every element equal to 2, 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.
1
0, 104, 3739, 160089, 10759709, 648002718, 40708113490, 2548695927399, 159913303887571, 10043292894572000, 630817213769269749, 39629356396091207363, 2489689079190364637171, 156417236131600077815031
OFFSET
1,2
COMMENTS
Column 7 of A299554.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..1..0..0..1. .0..1..1..1..1..0..0. .0..1..1..1..0..0..0
..0..0..1..0..0..1..1. .0..0..1..0..0..1..0. .0..0..1..0..0..0..1
..0..0..0..1..0..1..1. .0..0..0..1..1..0..0. .0..0..1..1..1..1..1
..0..0..1..1..1..0..0. .0..0..1..0..1..0..1. .0..0..1..0..1..1..1
..0..0..1..1..1..1..0. .0..0..1..1..0..1..1. .0..0..0..0..1..1..1
CROSSREFS
Cf. A299554.
Sequence in context: A299601 A217773 A298460 * A187530 A185741 A299333
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 12 2018
STATUS
approved