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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
OFFSET
1,1
COMMENTS
Row 3 of A222573
LINKS
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 25 2013
STATUS
approved