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 A222966 Number of n X 5 0..1 arrays with every row least squares fitting to a positive-slope straight line and every column least squares fitting to a zero- or positive-slope straight line, with a single point array taken as having zero slope. 1
 12, 48, 576, 3140, 37680, 264384, 3441888, 27387944, 361269072, 3225928864, 42721628400, 406849454892, 5367772345392, 53623428017220, 702878396190336, 7266377873987616, 94437176916813264, 1001872830089699424 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS R. H. Hardin, Table of n, a(n) for n = 1..21 EXAMPLE Some solutions for n=3: 0 0 0 1 1 0 1 0 0 1 0 0 0 1 1 0 0 1 1 1 0 1 0 1 1 0 1 0 1 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 1 1 1 1 0 0 1 1 1 0 1 1 1 1 CROSSREFS Column 4 of A222969. Sequence in context: A269030 A222359 A002899 * A077612 A041272 A022282 Adjacent sequences: A222963 A222964 A222965 * A222967 A222968 A222969 KEYWORD nonn AUTHOR R. H. Hardin, Mar 10 2013 STATUS approved

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Last modified September 8 17:50 EDT 2024. Contains 375753 sequences. (Running on oeis4.)