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A196956 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,1,3,4,0 for x=0,1,2,3,4 1
13, 178, 2987, 78717, 1918608, 46887039, 1147966466, 28133304588, 688970472958, 16871844816740, 413232005901840, 10120704139954048, 247866954036866195, 6070590513451031047, 148677076483267579402, 3641296772946640910171 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

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 4's, every 4 is next to 4 0's

Column 7 of A196957

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A196435 A197198 A295119 * A132386 A127390 A142646

Adjacent sequences:  A196953 A196954 A196955 * A196957 A196958 A196959

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 08 2011

STATUS

approved

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Last modified July 3 17:54 EDT 2022. Contains 355055 sequences. (Running on oeis4.)