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A198627
T(n,k)=Number of nXk 0..5 arrays with values 0..5 introduced in row major order and each element equal to at least one horizontal or vertical neighbor
8
0, 1, 1, 1, 3, 1, 2, 14, 14, 2, 3, 76, 185, 76, 3, 6, 488, 3904, 3904, 488, 6, 11, 3521, 98330, 342414, 98330, 3521, 11, 23, 28009, 3003238, 38208073, 38208073, 3003238, 28009, 23, 47, 241590, 102181788, 5040999127, 18048413395, 5040999127, 102181788
OFFSET
1,5
COMMENTS
Table starts
...0.......1..........1............2.............3.............6
...1.......3.........14...........76...........488..........3521
...1......14........185.........3904.........98330.......3003238
...2......76.......3904.......342414......38208073....5040999127
...3.....488......98330.....38208073...18048413395.9630271257812
...6....3521....3003238...5040999127.9630271257812
..11...28009..102181788.713917706692
..23..241590.3756159287
..47.2223711
.103
LINKS
EXAMPLE
Some solutions for n=6 k=4
..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
..0..0..0..0....0..0..0..1....0..0..1..1....0..0..1..2....0..0..0..1
..1..2..2..2....1..0..1..1....0..1..1..2....3..1..1..2....1..1..2..1
..1..2..1..0....1..1..2..1....1..1..2..2....3..2..0..0....1..2..2..1
..3..3..1..0....1..1..2..1....1..1..1..2....3..2..0..0....1..1..2..1
CROSSREFS
Sequence in context: A198669 A171059 A198708 * A198654 A198661 A163485
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Oct 27 2011
STATUS
approved