login
A298256
Number of nX5 0..1 arrays with every element equal to 2, 3, 5 or 8 king-move adjacent elements, with upper left element zero.
1
0, 11, 3, 23, 86, 238, 604, 2492, 7722, 26880, 93816, 323639, 1117834, 3898368, 13506089, 46957460, 163354721, 567902351, 1974550100, 6868633724, 23885771820, 83075178134, 288949706185, 1004983567658, 3495450659632, 12157805469082
OFFSET
1,2
COMMENTS
Column 5 of A298259.
LINKS
EXAMPLE
Some solutions for n=7
..0..0..1..1..1. .0..0..1..1..0. .0..0..0..1..1. .0..0..1..1..1
..0..1..0..0..1. .0..1..1..0..0. .1..0..1..0..1. .0..1..0..0..1
..0..1..1..1..0. .0..1..0..1..1. .1..1..1..0..1. .0..1..1..0..1
..0..0..0..0..0. .0..1..0..0..1. .1..0..0..0..1. .1..0..0..1..1
..1..1..1..1..1. .0..0..1..1..0. .0..1..1..1..0. .0..1..1..0..1
..1..1..1..1..1. .1..0..0..1..0. .1..0..0..1..0. .0..0..1..0..0
..1..1..1..1..1. .1..1..1..0..0. .1..1..1..0..0. .0..1..1..1..0
CROSSREFS
Cf. A298259.
Sequence in context: A317311 A107598 A087100 * A298927 A102380 A204845
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 15 2018
STATUS
approved