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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
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
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 05 2011
STATUS
approved

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Last modified April 23 00:41 EDT 2024. Contains 371906 sequences. (Running on oeis4.)