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 A224123 T(n,k)=Number of nXk 0..3 arrays with row sums nondecreasing and column sums unimodal 6
 4, 16, 10, 50, 150, 20, 130, 1747, 1080, 35, 296, 16782, 47059, 6627, 56, 610, 140210, 1703178, 1070499, 36552, 84, 1163, 1050460, 53355889, 145901795, 21632718, 187000, 120, 2083, 7227405, 1491827492, 17292618579, 11066001160, 400993828 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ...4......16.........50..........130...........296...........610 ..10.....150.......1747........16782........140210.......1050460 ..20....1080......47059......1703178......53355889....1491827492 ..35....6627....1070499....145901795...17292618579.1830213565657 ..56...36552...21632718..11066001160.4964366292229 ..84..187000..400993828.766386005577 .120..905440.6962188526 .165.4206453 .220 LINKS R. H. Hardin, Table of n, a(n) for n = 1..49 EXAMPLE Some solutions for n=3 k=4 ..0..2..2..0....2..0..0..1....2..2..0..0....0..2..3..0....0..0..2..1 ..2..2..2..1....2..2..2..0....2..3..1..0....2..0..3..0....0..0..0..3 ..2..3..1..3....0..2..2..3....0..2..2..3....0..3..2..0....0..1..3..3 CROSSREFS Column 1 is A000292(n+1) Column 2 is A223069 Row 1 is A223659 Sequence in context: A224173 A223864 A223987 * A273579 A147560 A266973 Adjacent sequences:  A224120 A224121 A224122 * A224124 A224125 A224126 KEYWORD nonn,tabl AUTHOR R. H. Hardin Mar 31 2013 STATUS approved

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Last modified January 26 11:53 EST 2022. Contains 350598 sequences. (Running on oeis4.)