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A305359
Number of nX7 0..1 arrays with every element unequal to 0, 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero.
1
1, 99, 99, 211, 656, 1476, 4429, 11281, 31062, 84750, 233266, 652271, 1795948, 4991011, 13877748, 38640817, 107514978, 299535232, 834994559, 2326796881, 6487438589, 18090082485, 50450315901, 140711717327, 392491509481
OFFSET
1,2
COMMENTS
Column 7 of A305360.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..1..1..1..1. .0..1..1..1..0..0..1. .0..1..0..0..1..1..1
..0..1..0..0..0..0..0. .0..1..1..1..0..0..1. .1..1..0..1..1..0..0
..1..0..0..1..1..0..1. .0..0..0..0..0..0..1. .0..1..0..1..0..1..0
..1..0..0..1..1..0..0. .1..1..1..0..0..1..0. .0..0..1..0..0..1..1
..1..0..0..1..1..0..1. .1..1..1..0..1..1..0. .1..1..1..1..1..0..0
CROSSREFS
Cf. A305360.
Sequence in context: A298509 A185504 A304009 * A213157 A317592 A296881
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 31 2018
STATUS
approved