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A303524
Number of n X 7 0..1 arrays with every element equal to 0, 1, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
21, 363, 916, 8676, 87730, 1052163, 15768709, 260078546, 4544413190, 82599711087, 1526885636233, 28491618817054, 534696956123707, 10062547249007546, 189657515521907356, 3577798561319688546, 67524490517322243151
OFFSET
1,1
COMMENTS
Column 7 of A303525.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..0..1..1..0. .0..1..0..1..0..1..0. .0..1..1..1..0..0..0
..1..1..1..0..1..0..1. .0..0..1..1..0..1..1. .1..0..1..1..1..1..0
..1..0..0..0..1..0..1. .1..1..1..1..1..1..1. .1..0..1..0..0..1..0
..1..0..1..1..1..0..1. .0..0..0..1..0..1..0. .1..1..1..1..1..1..1
..1..1..1..1..1..1..0. .0..1..1..1..0..0..1. .0..0..1..1..1..1..0
CROSSREFS
Cf. A303525.
Sequence in context: A302308 A303039 A302876 * A108495 A178351 A324360
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 25 2018
STATUS
approved