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A300965 Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
1, 304, 2145, 60730, 1550025, 40689759, 1111779576, 30150922994, 822562611004, 22465005602512, 613512002535449, 16760294348765415, 457851342586022696, 12507855255682109142, 341697407091052094924, 9334729194043851996141 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 7 of A300966.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..1..0..1..1. .0..0..1..1..1..0..0. .0..0..0..0..0..0..0
..0..1..1..0..0..1..0. .0..0..1..0..1..0..0. .0..1..0..1..1..1..0
..0..0..1..0..0..1..1. .0..1..1..1..1..1..1. .0..0..0..1..1..0..0
..0..0..1..1..1..0..1. .0..1..0..1..0..1..0. .0..1..0..0..1..1..1
..0..0..1..0..1..1..1. .0..0..0..1..1..0..0. .0..0..0..1..1..1..0
CROSSREFS
Cf. A300966.
Sequence in context: A270303 A187934 A300538 * A300922 A301530 A172228
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 17 2018
STATUS
approved

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Last modified July 20 20:25 EDT 2024. Contains 374459 sequences. (Running on oeis4.)