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A318213
Number of n X 7 0..1 arrays with every element unequal to 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
1
8, 102, 329, 2321, 20502, 155972, 1122773, 8679924, 65844976, 507320695, 3880082075, 29828690068, 228795498352, 1756171508386, 13486852207318, 103512846881063, 794948107621166, 6103334633903798, 46863181424234369
OFFSET
1,1
COMMENTS
Column 7 of A318214.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..0..0..1. .0..1..0..0..0..0..0. .0..1..0..0..1..1..0
..1..0..1..1..0..1..0. .0..0..1..1..1..0..1. .1..1..0..1..1..0..0
..0..0..0..0..0..0..0. .1..1..0..0..0..0..0. .1..1..1..1..1..1..1
..1..0..0..0..0..0..1. .1..1..0..0..1..0..0. .0..1..0..0..1..1..1
..0..0..1..0..1..0..0. .0..0..0..1..1..0..1. .1..1..1..1..0..1..0
CROSSREFS
Cf. A318214.
Sequence in context: A317862 A318551 A307461 * A001575 A366016 A328061
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 21 2018
STATUS
approved