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A281343
Number of nX7 0..1 arrays with no element equal to more than three of its king-move neighbors and with new values introduced in order 0 sequentially upwards.
1
64, 3281, 4355, 18189, 60540, 198619, 639142, 2039214, 6489813, 20683647, 65987467, 210970521, 675532316, 2165041339, 6942289440, 22270716585, 71468916039, 229423662632, 736691206279, 2366141286606, 7601378517849
OFFSET
1,1
COMMENTS
Column 7 of A281344.
LINKS
EXAMPLE
Some solutions for n=4
..0..1..0..0..0..1..0. .0..1..1..0..0..0..1. .0..0..1..1..1..1..0
..1..1..1..1..1..0..1. .0..0..1..0..1..1..0. .0..1..0..0..0..0..1
..0..0..0..0..1..0..1. .1..0..1..0..1..0..0. .0..1..0..1..1..1..0
..1..1..1..0..0..1..1. .1..0..1..0..1..0..1. .1..1..0..1..0..0..1
CROSSREFS
Cf. A281344.
Sequence in context: A181249 A260857 A183814 * A298286 A299358 A299179
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 20 2017
STATUS
approved