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A203190 Number of nX7 0..4 arrays with every nonzero element less than or equal to some horizontal or vertical neighbor 1
3985, 271942421, 9045835238617, 257892549401944763, 7699282272868336554723, 232103745979086439437076471, 6970324759861265041580630860421, 209209746691129348723930919203856597 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A203191

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..12

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A321053 A233648 A186799 * A229382 A159218 A159216

Adjacent sequences:  A203187 A203188 A203189 * A203191 A203192 A203193

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 30 2011

STATUS

approved

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Last modified June 28 12:59 EDT 2022. Contains 354907 sequences. (Running on oeis4.)