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A298292
Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.
1
32, 137, 72, 233, 515, 990, 1798, 4079, 9026, 18246, 39612, 86150, 184768, 396522, 854978, 1840676, 3976611, 8577126, 18505102, 40008385, 86432218, 186718489, 403706444, 872806433, 1886931887, 4080348203, 8825031925, 19084949119
OFFSET
1,1
COMMENTS
Column 6 of A298294.
LINKS
EXAMPLE
Some solutions for n=7
..0..1..1..1..1..0. .0..1..1..0..1..1. .0..0..1..0..1..1. .0..1..0..1..0..1
..1..0..0..0..0..1. .0..0..1..0..1..0. .1..0..1..0..0..0. .0..1..1..0..1..0
..0..1..0..0..1..0. .0..0..1..1..1..0. .1..0..0..0..1..1. .0..1..1..1..1..0
..0..1..0..0..1..0. .1..0..1..1..0..1. .0..0..1..0..1..0. .0..1..0..1..1..0
..0..1..0..1..1..1. .0..1..0..0..0..0. .1..1..0..0..1..1. .0..1..1..0..1..0
..1..1..1..1..0..0. .1..0..1..0..1..1. .0..1..1..0..0..0. .0..1..1..1..0..1
..0..0..1..1..1..0. .0..0..1..0..1..0. .0..1..0..1..1..0. .1..0..0..0..1..0
CROSSREFS
Cf. A298294.
Sequence in context: A304380 A297887 A298492 * A299386 A299185 A299946
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 16 2018
STATUS
approved