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A300927 Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
3, 129, 3447, 87561, 2244335, 57594572, 1477281166, 37892542998, 971951600750, 24930755913741, 639478906822565, 16402762675466111, 420734164143854022, 10791915992268202779, 276814817305204046858, 7100355778766419144128 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A300930.
LINKS
FORMULA
Empirical recurrence of order 64 (see link above)
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0
..0..1..1..0..0. .0..1..0..0..0. .0..1..0..1..1. .0..0..1..1..1
..0..1..1..1..1. .0..1..1..0..0. .0..1..1..1..0. .0..1..1..1..0
..0..0..1..0..0. .0..0..0..1..0. .0..0..0..1..0. .0..1..0..0..1
..0..1..1..1..1. .1..1..0..1..0. .1..1..1..1..1. .1..1..0..0..1
CROSSREFS
Cf. A300930.
Sequence in context: A319222 A300543 A300970 * A123047 A097420 A037119
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 15 2018
STATUS
approved

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Last modified July 24 09:48 EDT 2024. Contains 374583 sequences. (Running on oeis4.)