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URL: https://oeis.org/A209527

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A209527
T(n,k)=Number of nXk 0..7 arrays with every 2X2 subblock containing exactly one value repeat, and new values 0..7 introduced in row major order.
8
1, 2, 2, 5, 6, 5, 15, 57, 57, 15, 52, 700, 2027, 700, 52, 203, 10677, 107693, 107693, 10677, 203, 877, 193676, 7700397, 27323948, 7700397, 193676, 877, 4140, 4054358, 687132348, 9700576474, 9700576474, 687132348, 4054358, 4140, 21146, 95534880
OFFSET
1,2
COMMENTS
Table starts
....1........2.............5.................15.......................52
....2........6............57................700....................10677
....5.......57..........2027.............107693..................7700397
...15......700........107693...........27323948...............9700576474
...52....10677.......7700397.........9700576474...........16484968944748
..203...193676.....687132348......4194606038254........31813625228165210
..877..4054358...71519658191...2002617518101082.....64398780661554524050
.4140.95534880.8190834795146.999998646599976052.132601740316897661044124
LINKS
EXAMPLE
Some solutions for n=5 k=3
..0..0..0....0..0..0....0..0..0....0..0..1....0..0..1....0..0..0....0..1..0
..1..2..1....1..2..1....1..2..1....1..2..0....1..2..2....1..2..3....0..2..0
..2..0..0....0..0..0....0..0..1....1..0..3....0..0..1....1..0..0....0..1..0
..0..3..1....1..2..1....1..2..0....0..2..0....1..2..0....0..2..3....0..2..1
..3..1..0....0..1..0....0..0..1....0..1..0....0..0..1....2..3..0....1..2..0
CROSSREFS
Column 1 is A099263
Sequence in context: A209503 A209744 A209465 * A054255 A063177 A249521
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Mar 10 2012
STATUS
approved