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A197234 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,0,1,2 for x=0,1,2,3,4 1
13, 465, 24723, 1207249, 56349129, 2633810897, 126615582841, 6025045947229, 285872930194581, 13601246931224843, 646768759804113503, 30743940022418521003, 1461787203230841289843, 69503782128520679756365 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Every 0 is next to 0 4's, every 1 is next to 1 3's, every 2 is next to 2 0's, every 3 is next to 3 1's, every 4 is next to 4 2's

Column 7 of A197235

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..56

EXAMPLE

Some solutions for n=4

..0..0..0..2..0..1..0....0..0..0..0..0..2..0....0..0..0..2..0..0..0

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

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

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

CROSSREFS

Sequence in context: A197895 A197749 A198154 * A262570 A012073 A012143

Adjacent sequences:  A197231 A197232 A197233 * A197235 A197236 A197237

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 12 2011

STATUS

approved

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Last modified June 26 07:35 EDT 2022. Contains 354877 sequences. (Running on oeis4.)