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A298580
Number of nX6 0..1 arrays with every element equal to 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero.
1
5, 49, 113, 844, 3284, 16521, 90381, 457878, 2383346, 12834179, 68034896, 360124819, 1923634836, 10262125104, 54658517756, 291557084959, 1555797575002, 8298896752343, 44272773568783, 236226451253835, 1260403679006659
OFFSET
1,1
COMMENTS
Column 6 of A298582.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..1..1..1..0. .0..1..1..1..1..0. .0..1..0..1..0..0. .0..1..0..1..0..1
..1..1..0..0..0..1. .1..0..0..0..0..1. .1..0..0..1..1..1. .0..0..1..0..1..0
..0..0..0..0..0..1. .1..0..0..0..0..1. .1..0..1..0..1..0. .1..1..0..1..0..1
..0..1..0..1..0..1. .1..0..1..0..0..1. .1..0..0..0..0..1. .0..0..0..0..0..1
..1..1..0..1..0..0. .0..1..0..1..1..0. .0..0..0..0..1..0. .1..1..0..0..0..0
CROSSREFS
Cf. A298582.
Sequence in context: A079837 A297957 A298773 * A299572 A266127 A343690
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 22 2018
STATUS
approved