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A300942
Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
1
13, 6, 47, 186, 836, 3873, 16587, 77438, 373184, 1821648, 8941824, 44058575, 218133889, 1083495226, 5395009930, 26905649476, 134280333749, 670528898740, 3349651614840, 16737836364340, 83651967346499, 418123829380174
OFFSET
1,1
COMMENTS
Column 6 of A300944.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..0..1..1. .0..0..0..1..0..1. .0..0..1..1..1..0. .0..1..0..1..1..1
..1..1..1..0..0..0. .1..0..0..1..0..0. .1..1..1..1..1..0. .0..1..0..0..1..1
..1..1..0..0..0..0. .1..0..1..1..0..0. .0..1..1..1..0..0. .1..1..0..0..1..1
..1..0..0..0..0..1. .0..1..1..1..0..1. .0..1..1..0..0..0. .1..1..0..0..1..1
..1..0..0..0..1..0. .1..0..0..1..0..1. .1..0..1..0..0..1. .0..1..0..0..0..1
CROSSREFS
Cf. A300944.
Sequence in context: A206612 A220131 A268723 * A160247 A300886 A301496
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 16 2018
STATUS
approved