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A198712 Number of nX5 0..3 arrays with values 0..3 introduced in row major order and no element equal to any horizontal or vertical neighbor 2
14, 1201, 107042, 9548295, 851787199, 75987485516, 6778819400772, 604736581320925, 53948385378521909, 4812720805166620356, 429341516830025751982, 38301440209010857426775, 3416861087749979581617789 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A198715

LINKS

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

FORMULA

Empirical: a(n) = 119*a(n-1) -2929*a(n-2) +25066*a(n-3) -76115*a(n-4) -887*a(n-5) +324153*a(n-6) -444798*a(n-7) +175392*a(n-8)

EXAMPLE

Some solutions with all values from 0 to 3 for n=4

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

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

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

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

CROSSREFS

Sequence in context: A232373 A323181 A206613 * A204972 A209677 A137603

Adjacent sequences:  A198709 A198710 A198711 * A198713 A198714 A198715

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 29 2011

STATUS

approved

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Last modified August 13 05:18 EDT 2022. Contains 356077 sequences. (Running on oeis4.)