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 A221378 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor, with no occupancy greater than 2 5
 1, 3, 3, 7, 19, 7, 17, 139, 139, 17, 41, 1035, 3017, 1035, 41, 99, 7723, 68006, 68006, 7723, 99, 239, 57643, 1548941, 4616125, 1548941, 57643, 239, 577, 430251, 35365731, 318041768, 318041768, 35365731, 430251, 577, 1393, 3211435, 807887304 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts ....1.........3............7..............17...............41...............99 ....3........19..........139............1035.............7723............57643 ....7.......139.........3017...........68006..........1548941.........35365731 ...17......1035........68006.........4616125........318041768......22033399959 ...41......7723......1548941.......318041768......66128482930...13839040254798 ...99.....57643.....35365731.....22033399959...13839040254798.8736375837212974 ..239....430251....807887304...1529080824804.2904381959945700 ..577...3211435..18456843366.106164820551146 .1393..23970475.421665253450 .3363.178918059 .8119 LINKS R. H. Hardin, Table of n, a(n) for n = 1..71 EXAMPLE Some solutions for n=3 k=4 ..0..0..0..2....1..1..0..2....2..0..1..2....0..0..2..0....1..0..0..0 ..2..1..0..1....2..0..2..0....2..1..0..0....1..1..2..1....2..1..2..2 ..1..1..2..2....1..0..2..1....0..1..1..2....1..2..0..2....2..1..0..1 CROSSREFS Column 1 is A001333 Sequence in context: A058571 A058492 A221303 * A221269 A202047 A036574 Adjacent sequences: A221375 A221376 A221377 * A221379 A221380 A221381 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 13 2013 STATUS approved

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Last modified July 15 10:33 EDT 2024. Contains 374332 sequences. (Running on oeis4.)