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A298507 Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero. 1
1, 864, 2093, 35908, 795788, 16092678, 364785216, 7961618817, 177727031452, 3976975727003, 88606359445706, 1981050573358995, 44268615975150111, 989210454742847130, 22108245705766896050, 494089956294383955284 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 7 of A298508.
LINKS
EXAMPLE
Some solutions for n=4
..0..0..1..1..0..1..0. .0..0..0..0..1..0..1. .0..0..1..0..1..0..0
..1..0..0..1..0..0..0. .0..1..1..0..1..1..1. .1..0..1..1..1..0..1
..1..1..0..1..0..0..0. .1..0..1..0..1..1..1. .0..0..1..1..1..0..0
..0..1..1..1..0..1..0. .1..1..0..0..1..0..1. .0..0..1..0..1..0..1
CROSSREFS
Cf. A298508.
Sequence in context: A203662 A179671 A297914 * A097982 A298327 A299220
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 20 2018
STATUS
approved

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Last modified June 24 19:44 EDT 2024. Contains 373690 sequences. (Running on oeis4.)