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 A269505 T(n,k)=Number of nXk arrays containing k copies of 0..n-1 avoiding the pattern down-up in every row and column. 5
 1, 1, 2, 1, 6, 4, 1, 14, 54, 8, 1, 34, 420, 600, 16, 1, 92, 3088, 18332, 9102, 32, 1, 258, 25226, 480440, 1261420, 188472, 64, 1, 722, 239994, 13522204, 135988690, 134871120, 5118012, 128, 1, 2022, 2338286, 492613956, 14911788936, 69071316466 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Table starts ...1.........1...........1...........1...........1.........1...........1 ...2.........6..........14..........34..........92.......258.........722 ...4........54.........420........3088.......25226....239994.....2338286 ...8.......600.......18332......480440....13522204.492613956.18677195738 ..16......9102.....1261420...135988690.14911788936 ..32....188472...134871120.69071316466 ..64...5118012.21338020496 .128.172101936 .256 LINKS R. H. Hardin, Table of n, a(n) for n = 1..49 EXAMPLE Some solutions for n=3 k=4 ..1..0..0..0. .1..2..0..0. .1..0..0..1. .0..0..1..0. .1..1..2..2 ..2..2..1..0. .1..1..2..2. .0..2..2..2. .2..2..1..1. .2..2..1..0 ..2..2..1..1. .0..0..2..1. .0..2..1..1. .0..2..2..1. .0..0..1..0 CROSSREFS Column 1 is A000079(n-1). Column 2 is A269477. Sequence in context: A137594 A112360 A250485 * A269479 A118040 A073387 Adjacent sequences:  A269502 A269503 A269504 * A269506 A269507 A269508 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Feb 28 2016 STATUS approved

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Last modified August 24 03:51 EDT 2019. Contains 326260 sequences. (Running on oeis4.)