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 A221165 T(n,k)=Number of nXk arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor 4
 1, 3, 3, 8, 33, 8, 21, 352, 352, 21, 55, 3721, 14704, 3721, 55, 144, 39254, 609961, 609961, 39254, 144, 377, 413908, 25266305, 98570764, 25266305, 413908, 377, 987, 4363921, 1046229704, 15891102336, 15891102336, 1046229704, 4363921, 987, 2584 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts ....1.........3.............8..............21...............55..............144 ....3........33...........352............3721............39254...........413908 ....8.......352.........14704..........609961.........25266305.......1046229704 ...21......3721........609961........98570764......15891102336....2560795894232 ...55.....39254......25266305.....15891102336....9939389451855.6208776036030698 ..144....413908....1046229704...2560795894232.6208776036030698 ..377...4363921...43318295565.412629557874937 ..987..46008619.1793512771275 .2584.485064009 .6765 LINKS R. H. Hardin, Table of n, a(n) for n = 1..59 EXAMPLE Some solutions for n=3 k=4 ..0..0..0..1....0..2..1..0....0..1..0..3....0..4..0..1....0..1..3..2 ..1..5..2..2....0..2..1..2....0..2..1..1....0..0..1..0....0..1..1..0 ..0..1..0..0....0..0..1..3....0..1..3..0....2..2..1..1....1..2..0..1 CROSSREFS Column 1 is A001906 Sequence in context: A101126 A221001 A222093 * A221776 A221225 A119006 Adjacent sequences: A221162 A221163 A221164 * A221166 A221167 A221168 KEYWORD nonn,tabl AUTHOR R. H. Hardin Jan 03 2013 STATUS approved

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Last modified April 18 21:51 EDT 2024. Contains 371781 sequences. (Running on oeis4.)