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A196862
Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,4,2,0,1 for x=0,1,2,3,4.
1
1, 13, 113, 787, 7428, 62298, 494579, 3938849, 31419870, 250968250, 2008718820, 16085753439, 128812555358, 1031543802305, 8260521035929, 66148710544824, 529714073173089, 4241953681722567, 33969698176325537, 272030805637262923
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OFFSET
1,2
COMMENTS
Every 0 is next to 0 3's, every 1 is next to 1 4's, every 2 is next to 2 2's, every 3 is next to 3 0's, every 4 is next to 4 1's
Column 7 of
A196863
LINKS
R. H. Hardin,
Table of n, a(n) for n = 1..200
EXAMPLE
Some solutions for n=4
..0..0..0..0..0..1..0....0..1..0..0..0..0..0....2..2..2..0..0..0..0
..0..0..1..0..1..4..1....1..4..1..2..2..2..0....2..0..2..0..2..2..2
..0..1..4..1..0..1..0....0..1..0..2..0..2..0....2..0..2..0..2..0..2
..0..0..1..0..0..0..0....0..0..0..2..2..2..0....2..2..2..0..2..2..2
CROSSREFS
Sequence in context:
A320463
A182022
A211846
*
A021076
A125376
A048545
Adjacent sequences:
A196859
A196860
A196861
*
A196863
A196864
A196865
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Oct 06 2011
STATUS
approved
