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A300107
Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.
1
8, 2048, 13268, 150416, 4330629, 96369782, 1781758380, 37174337571, 798263732216, 16561883290086, 344500596499596, 7229007746190893, 151282991464412266, 3161738527029049302, 66155375962564555781
OFFSET
1,1
COMMENTS
Column 7 of A300108.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..0..0..1. .0..1..1..1..0..1..0. .0..0..1..0..1..0..1
..0..1..1..1..0..1..0. .0..0..0..1..0..0..1. .1..0..1..0..0..1..0
..1..1..1..1..0..0..1. .0..1..0..0..0..0..0. .1..1..0..0..0..1..0
..0..0..1..1..1..1..1. .0..1..1..1..0..1..0. .0..0..0..1..0..0..0
..0..0..1..0..0..0..0. .0..0..0..0..0..1..1. .0..0..0..1..1..1..0
CROSSREFS
Cf. A300108.
Sequence in context: A298388 A299306 A299464 * A139298 A004819 A001375
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 25 2018
STATUS
approved