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A197502 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,3,1,1,0 for x=0,1,2,3,4 1
1, 73, 1605, 20411, 462825, 9343735, 182232300, 3721024215, 75873083886, 1533554674879, 31095240897403, 631619193851873, 12815959990096973, 260019107905052450, 5276671977231304874, 107080511710187498485 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

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

Column 7 of A197503

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..155

EXAMPLE

Some solutions containing all values 0 to 4 for n=4

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

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

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

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

CROSSREFS

Sequence in context: A098676 A056214 A197216 * A197241 A224505 A217286

Adjacent sequences:  A197499 A197500 A197501 * A197503 A197504 A197505

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 15 2011

STATUS

approved

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Last modified May 25 22:17 EDT 2019. Contains 323576 sequences. (Running on oeis4.)