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A298928
Number of nX6 0..1 arrays with every element equal to 2, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.
1
0, 13, 7, 72, 255, 955, 3569, 15031, 61046, 253624, 1067751, 4492809, 18851449, 79305038, 333393642, 1401954916, 5897152044, 24806594547, 104353275618, 439007735235, 1846879331358, 7769846838226, 32688195410797, 137521855214717
OFFSET
1,2
COMMENTS
Column 6 of A298930.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..1..1. .0..0..0..1..1..1. .0..0..1..1..1..1. .0..0..0..0..0..0
..0..0..0..0..1..1. .0..0..0..1..1..1. .0..1..0..0..0..1. .0..0..0..0..0..0
..0..0..0..0..1..1. .0..0..0..1..1..1. .1..0..0..0..0..1. .0..0..0..0..0..0
..0..0..0..0..1..1. .0..0..0..1..1..1. .1..0..0..0..0..1. .0..0..0..0..0..0
..0..0..0..0..1..1. .0..0..0..1..1..1. .1..1..1..1..1..1. .0..0..0..0..0..0
CROSSREFS
Cf. A298930.
Sequence in context: A206611 A345399 A298257 * A152142 A298085 A177427
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 29 2018
STATUS
approved