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A207290 T(n,k)=Number of nXk 0..3 arrays avoiding the pattern z-2 z-1 z in any row or column 7
4, 16, 16, 62, 256, 62, 241, 3844, 3844, 241, 936, 58081, 216952, 58081, 936, 3636, 876096, 12359893, 12359893, 876096, 3636, 14124, 13220496, 702401282, 2663436930, 702401282, 13220496, 14124, 54865, 199487376, 39940889449 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Table starts
.....4.........16..............62.................241......................936
....16........256............3844...............58081...................876096
....62.......3844..........216952............12359893................702401282
...241......58081........12359893..........2663436930.............572065794890
...936.....876096.......702401282........572065794890..........464024582705468
..3636...13220496.....39940889449.....122968569630173.......376758439920954387
.14124..199487376...2270955601878...26429424077425891....305856308413400619700
.54865.3010168225.129125117609424.5680621805739504100.248307521270762694669197
LINKS
EXAMPLE
Some solutions for n=4 k=3
..1..0..2....0..0..3....0..2..0....3..2..2....2..2..1....1..3..3....0..1..1
..3..2..1....2..3..1....3..0..0....0..2..3....0..0..3....1..1..3....3..3..0
..1..0..3....1..2..0....2..1..1....3..0..1....0..0..1....0..1..0....3..1..1
..3..0..1....1..0..0....0..3..1....2..3..2....1..1..3....0..1..0....3..2..1
CROSSREFS
Column 1 is A206839
Column 2 is A206840
Sequence in context: A207134 A206838 A206900 * A223066 A339570 A223071
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Feb 16 2012
STATUS
approved

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Last modified July 18 01:34 EDT 2024. Contains 374377 sequences. (Running on oeis4.)