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 A188416 T(n,k)=Number of (n*k)Xk binary arrays with rows in nonincreasing order, n ones in every column and no more than 3 ones in any row 14
 1, 2, 1, 5, 3, 1, 14, 16, 4, 1, 46, 124, 39, 5, 1, 166, 1308, 723, 81, 6, 1, 652, 17443, 21965, 3217, 150, 7, 1, 2780, 282349, 968230, 252493, 11712, 256, 8, 1, 12644, 5396178, 57967660, 33313408, 2181522, 36659, 410, 9, 1, 61136, 119324602, 4505774905 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts .1..2....5.....14........46..........166............652............2780 .1..3...16....124......1308........17443.........282349.........5396178 .1..4...39....723.....21965.......968230.......57967660......4505774905 .1..5...81...3217....252493.....33313408.....6720357785...1943505834628 .1..6..150..11712...2181522....793369090...498407294632.497114063711190 .1..7..256..36659..15083334..14100262412.25784105550034 .1..8..410.101829..87171345.197263686098 .1..9..625.256901.434626896 .1.10..915.598561 .1.11.1296 LINKS R. H. Hardin, Table of n, a(n) for n = 1..80 EXAMPLE All solutions for 6X2 ..1..1....1..1....1..0....1..1 ..1..0....1..1....1..0....1..1 ..1..0....1..1....1..0....1..0 ..0..1....0..0....0..1....0..1 ..0..1....0..0....0..1....0..0 ..0..0....0..0....0..1....0..0 CROSSREFS Column 3 is A011863(n+1) Row 1 is A001680 Sequence in context: A067345 A242431 A349934 * A160185 A283424 A188392 Adjacent sequences: A188413 A188414 A188415 * A188417 A188418 A188419 KEYWORD nonn,tabl AUTHOR R. H. Hardin Mar 30 2011 STATUS approved

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Last modified February 2 23:07 EST 2023. Contains 360024 sequences. (Running on oeis4.)