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A303409
Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
8, 98, 730, 6322, 160247, 1716995, 24386918, 497878411, 6748940959, 106242067376, 1858501096856, 28169515094303, 452053058478307, 7483434704337764, 118104298097496073, 1903568189475537422, 30951192368001440803
OFFSET
1,1
COMMENTS
Column 7 of A303410.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..1..1..1. .0..0..1..1..0..1..0. .0..0..0..1..1..0..1
..0..0..1..1..0..0..0. .1..1..0..0..0..0..1. .1..1..1..0..0..1..0
..1..1..0..1..0..1..0. .0..0..0..0..0..0..0. .0..0..0..0..0..0..0
..0..0..0..1..1..0..1. .1..0..0..0..1..1..0. .1..0..1..1..0..0..1
..1..1..0..0..1..1..1. .0..1..0..1..1..0..0. .0..1..0..0..1..1..0
CROSSREFS
Cf. A303410.
Sequence in context: A196327 A116130 A302527 * A264168 A116287 A290242
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 23 2018
STATUS
approved