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A197427 Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,1,1 for x=0,1,2,3,4 1
5, 71, 448, 5197, 43909, 410456, 4017895, 37566429, 351740354, 3301443327, 31135760775, 294213106126, 2771339919971, 26068700897789, 245447885397640, 2313251869240159, 21800440099050007, 205343629421991480 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

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

Column 4 of A197431

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions containing all values 0 to 4 for n=5

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

..1..0..1..1....2..1..4..1....0..1..4..1....1..4..1..2....1..4..1..1

..2..1..4..1....1..3..1..0....0..1..1..2....0..1..1..0....0..1..3..0

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

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

CROSSREFS

Sequence in context: A171554 A197405 A295536 * A197668 A064752 A033507

Adjacent sequences:  A197424 A197425 A197426 * A197428 A197429 A197430

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 14 2011

STATUS

approved

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Last modified April 5 03:52 EDT 2020. Contains 333238 sequences. (Running on oeis4.)