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A196689 Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 2,1,3,0,4 for x=0,1,2,3,4 0
1, 5, 76, 3394, 546956, 279754939, 465819437152, 2520182960610600, 44155322347113863050, 2500562115488233367551895 (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 1's, every 2 is next to 2 3's, every 3 is next to 3 0's, every 4 is next to 4 4's

Diagonal of A196696

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A011918 A209095 A136300 * A196725 A197063 A144997

Adjacent sequences:  A196686 A196687 A196688 * A196690 A196691 A196692

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 05 2011

STATUS

approved

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Last modified January 26 11:07 EST 2020. Contains 331279 sequences. (Running on oeis4.)