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A300803 Number of nX7 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
64, 8192, 654628, 60123512, 5431609016, 492720806016, 44678859224720, 4051836004410912, 367449310053104876, 33323013503721659420, 3021976074733064177028, 274055043912124036181788 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A300804.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..0..0..1..0. .0..0..1..0..0..0..1. .0..0..1..0..1..1..1
..0..0..1..0..0..0..0. .0..0..1..0..1..1..1. .0..0..1..0..0..1..1
..0..0..1..0..1..1..1. .0..0..1..0..0..1..1. .0..0..1..0..1..0..0
..0..0..1..1..1..0..1. .0..0..1..1..0..1..0. .0..0..1..0..0..1..0
..0..0..0..0..0..1..0. .0..0..0..0..0..0..0. .0..0..0..0..1..0..1
CROSSREFS
Cf. A300804.
Sequence in context: A299660 A300214 A302746 * A303455 A303461 A301442
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 13 2018
STATUS
approved

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)