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 A223070 Number of nX3 0..3 arrays with successive rows and columns fitting to straight lines with nondecreasing slope, with a single point array taken as having zero slope 1
 64, 1080, 38512, 899390, 22520656, 462313688, 9567328752, 178464221290, 3336648010448, 58641450033936, 1033599371410096, 17499076161248060, 297470720803662048, 4917593684170711306, 81699455573347788176 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A223071 LINKS R. H. Hardin, Table of n, a(n) for n = 1..25 EXAMPLE Some solutions for n=3 ..2..2..2....0..0..0....3..2..0....2..0..0....0..0..0....3..3..1....2..0..2 ..1..0..2....1..0..2....0..2..1....1..1..3....1..2..3....1..0..1....1..2..2 ..1..3..3....2..2..3....0..3..2....0..2..2....0..2..3....0..1..3....0..0..2 CROSSREFS Sequence in context: A300936 A300880 A301490 * A191900 A191494 A269000 Adjacent sequences: A223067 A223068 A223069 * A223071 A223072 A223073 KEYWORD nonn AUTHOR R. H. Hardin Mar 14 2013 STATUS approved

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Last modified May 30 08:27 EDT 2023. Contains 363050 sequences. (Running on oeis4.)