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 A185891 T(n,k)=1/729 the number of (n+2)X(k+2) 0..2 arrays with no 3X3 subblock trace equal to any horizontal or vertical neighbor 3X3 subblock trace 10
 27, 588, 588, 12900, 28086, 12900, 282672, 1367896, 1367896, 282672, 6195480, 66642628, 151319356, 66642628, 6195480, 135783240, 3246601822, 16772497838, 16772497838, 3246601822, 135783240, 2975926392, 158165462152, 1859643383374 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ..........27.............588...............12900..................282672 .........588...........28086.............1367896................66642628 .......12900.........1367896...........151319356.............16772497838 ......282672........66642628.........16772497838...........4223442979220 .....6195480......3246601822.......1859643383374........1060306245936410 ...135783240....158165462152.....206151739863904......266120814001133510 ..2975926392...7705358302364...22854468047098854....66791286531734378864 .65222436072.375382835991994.2533647121080969994.16763506421271197917026 LINKS R. H. Hardin, Table of n, a(n) for n = 1..84 EXAMPLE Some solutions for 5X4 ..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0 ..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0 ..2..0..1..2....0..2..0..1....2..2..2..0....2..1..0..2....2..0..2..0 ..2..1..2..0....0..0..2..0....0..2..1..2....1..0..2..1....1..0..1..2 ..2..1..1..0....0..2..2..1....0..2..2..0....0..0..0..0....1..1..1..0 CROSSREFS Sequence in context: A061914 A076008 A232944 * A185883 A212670 A099753 Adjacent sequences:  A185888 A185889 A185890 * A185892 A185893 A185894 KEYWORD nonn,tabl AUTHOR R. H. Hardin Feb 05 2011 STATUS approved

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Last modified September 30 03:54 EDT 2020. Contains 337434 sequences. (Running on oeis4.)