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A299601
Number of n X 7 0..1 arrays with every element equal to 2, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
1
0, 104, 3051, 72751, 4309263, 197267780, 9743385598, 481541186894, 23753464370841, 1177165425219598, 58266046167978416, 2886208357543956203, 142961429483327026603, 7081556077991924024988, 350792681281930188956328
OFFSET
1,2
COMMENTS
Column 7 of A299602.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..1..1..1..1. .0..0..0..0..1..0..0. .0..0..1..1..1..0..0
..0..0..1..0..0..0..1. .0..0..0..0..1..1..0. .0..1..0..1..0..0..0
..0..0..0..0..1..0..0. .0..0..0..0..1..1..0. .0..0..1..0..1..1..1
..0..0..0..0..1..1..0. .0..0..0..1..1..0..0. .0..0..1..1..1..1..1
..0..0..0..0..1..1..1. .0..0..1..1..1..0..0. .0..0..1..1..1..1..1
CROSSREFS
Cf. A299602.
Sequence in context: A298628 A281536 A250684 * A217773 A298460 A299553
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 14 2018
STATUS
approved