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A203057 T(n,k)=Number of nXk 0..5 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor 9
1, 6, 6, 36, 286, 36, 161, 7820, 7820, 161, 636, 177290, 1055370, 177290, 636, 2507, 4078368, 125838722, 125838722, 4078368, 2507, 10213, 96511488, 15517802234, 78243755382, 15517802234, 96511488, 10213, 42182, 2282090278, 1938869645102 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Table starts

.....1...........6................36.....................161

.....6.........286..............7820..................177290

....36........7820...........1055370...............125838722

...161......177290.........125838722.............78243755382

...636.....4078368.......15517802234..........50221974160730

..2507....96511488.....1938869645102.......32577032228308750

.10213..2282090278...241217648933826....21056749683696452598

.42182.53729637298.29971627049343224.13600371239866122117034

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..84

EXAMPLE

Some solutions for n=5 k=3

..2..2..5....1..5..2....3..1..4....4..3..2....4..0..4....1..5..0....3..3..2

..4..1..5....2..5..2....5..2..4....4..0..3....4..4..5....0..5..2....3..3..3

..4..2..3....5..3..4....5..3..0....3..0..3....4..1..5....3..4..3....0..4..1

..4..3..1....5..0..5....3..1..1....3..0..4....2..0..2....1..0..3....3..4..4

..2..3..2....0..0..5....5..5..4....3..5..5....0..3..3....5..5..0....0..5..5

CROSSREFS

Sequence in context: A257626 A222340 A215270 * A165424 A244957 A186982

Adjacent sequences:  A203054 A203055 A203056 * A203058 A203059 A203060

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Dec 28 2011

STATUS

approved

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Last modified August 10 14:50 EDT 2020. Contains 336381 sequences. (Running on oeis4.)