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A298099
Number of nX7 0..1 arrays with every element equal to 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
1
0, 8, 0, 42, 134, 2934, 16212, 273251, 2168179, 29643572, 283552252, 3490557521, 36211533806, 422269197029, 4562780449805, 51812772617177, 569858744707613, 6399889129565012, 70902808989036819, 792544973629119436
OFFSET
1,2
COMMENTS
Column 7 of A298100.
LINKS
EXAMPLE
Some solutions for n=7
..0..0..0..0..0..0..0. .0..0..0..0..0..1..1. .0..0..1..1..1..1..1
..0..0..0..1..1..0..0. .0..0..1..0..0..1..1. .0..0..1..1..1..1..1
..1..1..1..0..1..1..1. .0..1..1..1..0..1..1. .0..0..0..1..0..0..1
..1..1..0..0..1..1..1. .0..1..1..1..0..0..1. .0..0..1..0..0..0..1
..1..1..0..0..0..0..0. .0..0..0..0..0..0..1. .0..0..1..1..1..1..1
..0..0..1..1..1..0..0. .0..0..1..1..0..1..1. .1..1..0..0..0..1..1
..0..0..1..1..1..0..0. .0..0..1..1..1..1..1. .1..1..0..0..0..1..1
CROSSREFS
Cf. A298100.
Sequence in context: A197618 A340953 A047771 * A137528 A270006 A167318
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 12 2018
STATUS
approved