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A186553 T(n,k)=1/8192 the number of (n+2)X(k+2) 0..3 arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace 7
0, 290, 290, 2972, 19016, 2972, 168200, 1279862, 1279862, 168200, 3090668, 88662978, 177942264, 88662978, 3090668, 111188198, 6215002266, 31976088817, 31976088817, 6215002266, 111188198, 2585394080, 435599518160, 5253540132125 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Table starts
...........0..............290.................2972................168200
.........290............19016..............1279862..............88662978
........2972..........1279862............177942264...........31976088817
......168200.........88662978..........31976088817........13544245035035
.....3090668.......6215002266........5253540132125......5541254050323697
...111188198.....435599518160......891778365437358...2292090739550640497
..2585394080...30577245619492...149628929202973235.945658119457845662613
.78931270418.2145961447892386.25212444270769802733
LINKS
EXAMPLE
Some solutions for 5X4
..0..2..0..0....0..2..0..0....2..2..0..0....0..2..0..0....0..2..0..0
..0..2..0..0....2..0..0..0....0..0..0..0....2..2..0..0....0..0..0..0
..3..2..0..0....1..0..2..0....1..0..0..0....3..3..0..0....2..2..2..0
..0..2..0..0....0..1..1..1....0..2..3..3....0..0..0..2....0..0..1..2
..0..0..0..3....2..2..1..2....2..3..0..0....2..2..2..1....0..1..1..1
CROSSREFS
Sequence in context: A180701 A091680 A129245 * A075420 A075421 A332229
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 23 2011
STATUS
approved

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Last modified April 19 15:11 EDT 2024. Contains 371794 sequences. (Running on oeis4.)