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A203189 Number of nX6 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor 1
1121, 15703631, 117061422325, 754868206701309, 5067952959051283059, 34353493702738177260748, 232103745979086439437076471, 1567267224439734346152398392389, 10585441536020941283010401910808799 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A203191

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..65

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A207234 A207227 A207014 * A317962 A334963 A327431

Adjacent sequences:  A203186 A203187 A203188 * A203190 A203191 A203192

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 30 2011

STATUS

approved

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Last modified September 23 10:51 EDT 2020. Contains 337298 sequences. (Running on oeis4.)