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A298546
Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.
1
8, 2907, 104034, 3215618, 109775311, 3761355239, 128132389259, 4376310739604, 149522986489383, 5107645182777162, 174492495636267679, 5961471855582255296, 203670379085597928651, 6958298552274504509430, 237727841665428990972405
OFFSET
1,1
COMMENTS
Column 7 of A298547.
LINKS
EXAMPLE
Some solutions for n=3
..0..1..1..1..1..1..1. .0..0..0..0..0..0..1. .0..1..1..1..1..0..1
..0..0..1..1..0..0..0. .1..0..1..0..0..1..1. .1..0..1..1..0..1..1
..0..1..1..1..1..1..0. .1..1..0..0..0..0..0. .0..1..1..1..1..0..0
CROSSREFS
Cf. A298547.
Sequence in context: A280282 A125539 A297922 * A298336 A299397 A299227
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 21 2018
STATUS
approved