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 A221267 Number of nX3 arrays of occupancy after each element stays put or moves to some king-move neighbor, with no occupancy greater than 2 1
 7, 141, 3119, 71977, 1688295, 39832247, 941623211, 22274020039, 526997663309, 12469419844637, 295047590702713, 6981363653378659, 165192014421623009, 3908750400013375947, 92488301546612746461, 2188444946392166774905 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A221269 LINKS R. H. Hardin, Table of n, a(n) for n = 1..21 EXAMPLE Some solutions for n=3 ..1..1..1....0..1..2....0..0..2....1..0..1....1..1..1....1..2..1....2..2..1 ..0..2..2....1..1..1....2..0..2....2..0..2....1..2..0....0..1..0....1..0..1 ..0..2..0....0..1..2....1..0..2....1..0..2....2..1..0....1..2..1....0..0..2 CROSSREFS Sequence in context: A302912 A191956 A215042 * A070074 A051397 A322064 Adjacent sequences:  A221264 A221265 A221266 * A221268 A221269 A221270 KEYWORD nonn AUTHOR R. H. Hardin Jan 08 2013 STATUS approved

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Last modified December 15 17:03 EST 2019. Contains 330000 sequences. (Running on oeis4.)