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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 (list; table; graph; refs; listen; history; text; internal format)
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

R. H. Hardin, Table of n, a(n) for n = 1..60

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

Adjacent sequences:  A198624 A198625 A198626 * A198628 A198629 A198630

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Oct 27 2011

STATUS

approved

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Last modified September 30 18:12 EDT 2020. Contains 337440 sequences. (Running on oeis4.)