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A302326
Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
1
16, 264, 1144, 4525, 20686, 104932, 529381, 2593409, 12723622, 63324996, 317094174, 1585110143, 7916042111, 39591620182, 198355232579, 994432912057, 4986588408216, 25014245719741, 125539045973986, 630285367123705
OFFSET
1,1
COMMENTS
Row 5 of A302322.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..0..1. .0..0..1..1..0. .0..0..1..1..0. .0..1..0..0..0
..0..1..1..0..1. .0..0..1..1..0. .1..0..1..0..0. .1..1..1..0..1
..0..1..0..1..1. .0..1..0..1..0. .1..0..1..0..1. .1..0..1..0..1
..0..0..1..1..0. .1..0..0..1..0. .0..0..0..1..1. .0..0..1..1..0
..1..0..0..1..0. .0..0..1..1..1. .0..1..0..0..1. .1..1..0..0..1
CROSSREFS
Cf. A302322.
Sequence in context: A302626 A302418 A303185 * A303019 A302823 A303516
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 05 2018
STATUS
approved