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 A199237 T(n,k)=Number of nXk 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and every element equal to at least one horizontal or vertical neighbor 7
 0, 0, 0, 0, 0, 0, 0, 3, 3, 0, 0, 12, 10, 12, 0, 1, 31, 134, 134, 31, 1, 3, 143, 1162, 7772, 1162, 143, 3, 3, 1183, 14159, 233185, 233185, 14159, 1183, 3, 1, 5068, 157598, 2350573, 16467051, 2350573, 157598, 5068, 1, 6, 11594, 1893418, 198168342, 410003607 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,8 COMMENTS Table starts .0......0........0..........0...........0...........1...........3.............3 .0......0........3.........12..........31.........143........1183..........5068 .0......3.......10........134........1162.......14159......157598.......1893418 .0.....12......134.......7772......233185.....2350573...198168342....5945464970 .0.....31.....1162.....233185....16467051...410003607.88764401434.6694765030353 .1....143....14159....2350573...410003607.74737706829 .3...1183...157598..198168342.88764401434 .3...5068..1893418.5945464970 .1..11594.22549653 .6.133430 LINKS R. H. Hardin, Table of n, a(n) for n = 1..71 EXAMPLE Some solutions for n=6 k=4 ..0..1..0..0....0..0..0..0....0..1..0..0....0..0..0..0....0..0..0..0 ..0..1..0..0....0..0..1..1....0..1..2..0....0..0..1..2....0..1..2..2 ..1..2..2..2....1..1..2..2....2..2..2..2....2..2..1..2....0..1..1..2 ..1..2..2..2....1..2..2..2....0..1..1..2....0..0..1..2....2..2..1..0 ..2..2..0..0....0..2..1..2....0..0..1..1....2..1..1..2....2..2..1..0 ..1..1..1..1....0..1..1..2....1..1..2..2....2..1..1..1....2..1..1..1 CROSSREFS Column 1 is A199034 Sequence in context: A283071 A060523 A199041 * A309651 A305541 A280810 Adjacent sequences: A199234 A199235 A199236 * A199238 A199239 A199240 KEYWORD nonn,tabl AUTHOR R. H. Hardin Nov 04 2011 STATUS approved

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Last modified September 26 12:13 EDT 2023. Contains 365657 sequences. (Running on oeis4.)