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A222568 Number of nX3 0..2 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order 5
1, 5, 11, 120, 500, 5210, 20889, 229894, 913405, 10427244, 40896923, 479942958, 1866795781, 22316526370, 86377362833, 1045093746614, 4036724271985, 49216523120074, 190041618262033, 2328483132653366, 8997015510376997 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A222573

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A302144 A041909 A041048 * A248253 A262309 A266421

Adjacent sequences:  A222565 A222566 A222567 * A222569 A222570 A222571

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 25 2013

STATUS

approved

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Last modified October 22 19:53 EDT 2019. Contains 328319 sequences. (Running on oeis4.)