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 A204616 T(n,k) = Number of (n+1) X (k+1) 0..1 arrays with the determinants of 2 X 2 subblocks nondecreasing rightwards and downwards. 9
 16, 47, 47, 125, 181, 125, 335, 749, 749, 335, 907, 3254, 4901, 3254, 907, 2470, 14199, 31805, 31805, 14199, 2470, 6740, 62031, 205117, 313597, 205117, 62031, 6740, 18406, 271125, 1322417, 3084029, 3084029, 1322417, 271125, 18406, 50278, 1185255 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts: ....16......47......125........335..........907..........2470............6740 ....47.....181......749.......3254........14199.........62031..........271125 ...125.....749.....4901......31805.......205117.......1322417.........8522985 ...335....3254....31805.....313597......3084029......30487865.......301345617 ...907...14199...205117....3084029.....45645661.....681254361.....10133992449 ..2470...62031..1322417...30487865....681254361...15468240213....349154906413 ..6740..271125..8522985..301345617..10133992449..349154906413..11909737623605 .18406.1185255.54938417.2981578169.150976448169.7906679632133.408218289321933 LINKS R. H. Hardin, Table of n, a(n) for n = 1..480 EXAMPLE Some solutions for n=4, k=3: ..1..0..1..1....0..1..0..1....0..1..0..0....0..0..1..0....1..0..1..1 ..0..0..0..0....0..0..0..1....0..1..0..0....1..0..0..0....1..0..1..1 ..0..1..1..0....1..0..0..0....0..1..0..1....0..0..0..1....0..0..1..1 ..0..0..0..0....1..0..0..0....0..1..0..0....0..0..0..1....1..0..0..0 ..1..1..1..1....1..0..0..0....0..1..0..0....0..0..0..0....1..0..0..0 CROSSREFS Sequence in context: A133345 A253231 A253350 * A204800 A194268 A292171 Adjacent sequences: A204613 A204614 A204615 * A204617 A204618 A204619 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Jan 17 2012 STATUS approved

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Last modified March 31 18:24 EDT 2023. Contains 361672 sequences. (Running on oeis4.)