A196966 - OEIS

A196966

Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,1,2,0,3 for x=0,1,2,3,4

13, 1397, 102080, 6764386, 482839574, 33928210026, 2383058555507, 167702841476961, 11786999591610885, 828960396306273892, 58296402348891537824, 4099251286067107216498, 288261650035459614362322

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OFFSET

1,1

COMMENTS

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

Column 7 of A196967

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..67

EXAMPLE

Some solutions for n=4

..0..0..0..0..1..1..0....0..0..0..0..1..1..0....0..0..0..0..0..0..0

..0..0..0..0..0..3..0....0..0..0..0..3..0..3....0..0..0..0..0..0..0

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

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

CROSSREFS

Sequence in context: A197630 A222017 A238562 * A203369 A350305 A197097

Adjacent sequences: A196963 A196964 A196965 * A196967 A196968 A196969

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 08 2011

STATUS

approved