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A302533 Number of 7 X n 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
0, 421, 9091, 15852, 92603, 1551340, 16130212, 82774516, 506265517, 5660323142, 51739325680, 335761691745, 2418466197168, 21927716125718, 184725699865822, 1350254421406010, 10284927374810243, 86141789798720948, 701278900747323768 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 7 of A302528.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..1..1. .0..1..1..0..0. .0..1..0..1..0. .0..1..0..1..0
..1..0..0..0..0. .0..0..1..0..0. .1..0..0..0..1. .1..0..1..0..1
..0..1..1..1..0. .1..0..1..1..1. .0..1..0..1..0. .1..0..1..0..1
..1..0..1..0..0. .0..1..1..0..0. .0..0..0..0..0. .0..1..1..1..0
..1..1..0..1..0. .1..0..1..0..1. .0..1..1..1..1. .1..1..1..1..1
..1..0..0..0..0. .0..0..1..1..1. .1..1..0..1..0. .1..0..0..0..1
..0..1..0..1..1. .0..1..1..0..0. .1..0..1..0..1. .0..1..1..1..0
CROSSREFS
Cf. A302528.
Sequence in context: A353045 A302732 A251198 * A303414 A242149 A083193
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 09 2018
STATUS
approved

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Last modified March 28 10:55 EDT 2024. Contains 371241 sequences. (Running on oeis4.)