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A300802 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
32, 2048, 89472, 4369224, 210678360, 10189867088, 492720806016, 23826737802264, 1152195114983576, 55717051451646784, 2694326325041302348, 130290356568278014868, 6300490353201433009024, 304674726080105302263808 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A300804.
LINKS
FORMULA
Empirical recurrence of order 85 (see link above)
EXAMPLE
Some solutions for n=5
..0..0..1..1..0..0. .0..0..1..0..0..1. .0..0..1..1..1..0. .0..0..1..0..0..1
..0..0..1..0..1..0. .0..0..1..0..0..0. .0..0..1..1..0..1. .0..0..1..0..1..0
..0..0..1..1..1..1. .0..0..1..1..1..1. .0..0..1..0..1..0. .0..0..1..1..0..0
..0..0..1..0..0..1. .0..0..1..0..0..0. .0..0..1..0..0..1. .0..0..1..0..1..0
..0..0..1..0..1..0. .0..1..0..1..1..1. .0..1..0..1..0..0. .0..1..1..1..0..1
CROSSREFS
Cf. A300804.
Sequence in context: A299659 A300213 A302745 * A303454 A303460 A301441
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 13 2018
STATUS
approved

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)