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A303039
Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
21, 363, 360, 2926, 11079, 59654, 345668, 2060154, 13122422, 89037375, 632329265, 4677904112, 35799149696, 280072132889, 2226022479526, 17895152751103, 144903511517451, 1178993189869482, 9624601342853800, 78735791021587131
OFFSET
1,1
COMMENTS
Column 7 of A303040.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..1..1..1..0. .0..1..1..1..0..1..0. .0..1..0..0..0..0..1
..1..1..1..1..0..1..0. .0..1..0..1..0..1..1. .0..0..0..0..0..1..0
..0..1..0..1..0..1..0. .0..1..0..1..0..1..0. .0..1..0..0..0..1..0
..1..1..0..1..0..1..0. .0..1..0..0..0..1..0. .0..1..0..0..0..0..0
..0..1..0..1..1..0..0. .1..0..0..0..0..0..0. .0..0..0..0..0..1..0
CROSSREFS
Cf. A303040.
Sequence in context: A167032 A051564 A302308 * A302876 A303524 A108495
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 17 2018
STATUS
approved