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A222575 Number of 3Xn 0..2 arrays with no more than floor(3Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order 1
5, 5, 11, 56, 134, 1500, 3999, 46250, 126987, 1462034, 4136257, 46688904, 136406909, 1501835282, 4510551635, 48637741544, 149382874117, 1583951305266, 4954925376243, 51834151640684, 164570402519621, 1703435934148924 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A222573

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..25

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A173316 A242325 A098331 * A222681 A061391 A168336

Adjacent sequences:  A222572 A222573 A222574 * A222576 A222577 A222578

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 25 2013

STATUS

approved

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Last modified October 16 21:10 EDT 2019. Contains 328103 sequences. (Running on oeis4.)