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A295415 Number of nX7 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 3 1s. 1
37, 5854, 457178, 37927609, 3232240913, 272714953724, 23025368248778, 1945003010538968, 164274708080518128, 13874595126484055272, 1171853104636801040141, 98975023815069258155234 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A295416.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..1..0..0. .0..0..0..0..0..1..0. .0..0..0..0..1..1..0
..0..0..0..0..1..0..0. .0..0..0..0..1..1..0. .0..0..0..0..0..0..1
..0..0..0..0..0..0..0. .0..0..0..1..1..0..1. .0..0..0..0..1..1..1
..0..0..1..0..0..1..1. .0..0..1..0..1..1..1. .0..0..1..0..1..0..1
..0..0..1..0..0..0..1. .0..0..1..0..0..0..0. .0..0..1..0..0..0..1
CROSSREFS
Cf. A295416.
Sequence in context: A153168 A195215 A183481 * A202801 A226307 A296598
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 22 2017
STATUS
approved

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Last modified March 29 05:48 EDT 2024. Contains 371265 sequences. (Running on oeis4.)