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A318428 Number of nX6 0..1 arrays with every element unequal to 1, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
5, 511, 1353, 20016, 132039, 1216538, 9600648, 81327718, 665822482, 5547964642, 45869504563, 380741848431, 3154908484252, 26163271819169, 216899879798735, 1798367150917047, 14910277331599425, 123621215328946695 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A318430.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..0..0..1. .0..0..1..1..1..1. .0..1..1..0..1..0. .0..1..1..0..1..0
..0..1..1..0..0..1. .1..1..0..1..0..0. .1..1..0..0..1..1. .1..0..0..1..1..1
..0..1..1..0..0..0. .1..1..1..0..0..1. .0..0..0..1..1..0. .0..0..1..1..0..1
..0..1..1..1..1..0. .0..1..1..0..0..1. .1..1..1..1..1..0. .0..1..1..1..1..1
..0..0..0..1..1..0. .0..0..1..1..0..1. .1..0..0..1..0..1. .0..1..0..0..1..0
CROSSREFS
Cf. A318430.
Sequence in context: A068234 A012741 A317821 * A318096 A249805 A003394
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 26 2018
STATUS
approved

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Last modified March 3 14:56 EST 2024. Contains 370512 sequences. (Running on oeis4.)