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A222484 Number of nX4 0..2 arrays with exactly floor(nX4/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order 1
3, 5, 33, 270, 3219, 34851, 374375, 3973169, 42982280, 460903822, 4976455334, 53808006211, 581903007779, 6320908811064, 68518381809825, 746547109498241, 8112995455405661, 88582659132995459, 964996864754354180 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A222488
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..0....0..0..0..0....0..1..2..0....0..0..1..2....0..1..2..0
..0..0..0..0....0..0..0..0....1..2..2..2....1..0..0..0....1..1..1..0
..0..0..0..0....0..1..0..0....2..2..2..2....0..0..0..0....1..1..1..1
..0..1..2..1....0..2..0..0....2..2..2..2....0..0..0..0....1..1..1..1
CROSSREFS
Sequence in context: A225866 A332704 A263295 * A354849 A222630 A187993
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 22 2013
STATUS
approved

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Last modified June 21 19:23 EDT 2024. Contains 373558 sequences. (Running on oeis4.)