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 A189951 T(n,k)=1/4 the number of arrangements of n+1 nonzero numbers x(i) in -k..k with the sum of sign(x(i))*(|x(i)| mod x(i+1)) equal to zero 16
 1, 3, 2, 5, 8, 4, 8, 15, 22, 8, 10, 29, 63, 72, 16, 14, 39, 159, 384, 280, 32, 16, 61, 306, 1246, 2393, 1152, 64, 20, 75, 542, 3247, 9884, 13569, 4632, 128, 23, 103, 889, 6733, 31284, 73992, 72744, 17888, 256, 27, 124, 1350, 13034, 77459, 280284, 542353 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Table starts ...1......3........5.........8.........10..........14..........16...........20 ...2......8.......15........29.........39..........61..........75..........103 ...4.....22.......63.......159........306.........542.........889.........1350 ...8.....72......384......1246.......3247........6733.......13034........22220 ..16....280.....2393......9884......31284.......77459......168737.......327880 ..32...1152....13569.....73992.....280284......839968.....2095080......4678100 ..64...4632....72744....542353....2514945.....9133420....26586582.....68081570 .128..17888...393006...4014514...23257218...101599137...346371666...1012894742 .256..67232..2206620..30195535..219695998..1148390301..4569825052..15245829657 .512.251136.12731028.229483051.2090461716.13075280021.60616719909.230937539015 LINKS R. H. Hardin, Table of n, a(n) for n = 1..609 EXAMPLE Some solutions with n=5 k=3 .-2...-1...-2...-2...-2....2...-3...-2....1....3....2....2....2....3...-3...-3 .-2...-3....3....1....2....1....1...-1...-2...-3....1...-3....2....2....3...-2 .-2....3...-2....1...-3....3....2...-1...-2....2....3...-3....2...-2...-2...-2 .-1...-1....1....1...-2...-1...-1...-2...-1....3...-1....2...-1....3....3....1 ..3....1....2...-1...-1...-3....3....1...-2...-2...-2...-1....3....2....1....2 .-2....2....2...-1...-3....1....1...-2....2...-3....1...-2...-2....2...-3....1 CROSSREFS Row 1 is A006218 Sequence in context: A246275 A209757 A208932 * A209776 A019594 A085167 Adjacent sequences: A189948 A189949 A189950 * A189952 A189953 A189954 KEYWORD nonn,tabl AUTHOR R. H. Hardin May 02 2011 STATUS approved

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Last modified April 16 18:22 EDT 2024. Contains 371750 sequences. (Running on oeis4.)