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A222916 Number of nX5 0..2 arrays with exactly floor(nX5/2) elements equal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order 1
16, 654, 17518, 1309863, 26742406, 2133576918, 43875762623, 3643286829221, 76890372039924, 6535580567066928, 141130344695671712, 12166904908881796439, 267360083380015562049, 23255314139393869641038, 517565824894996299344331 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A222918
LINKS
EXAMPLE
Some solutions for n=3
..0..1..2..1..0....0..1..0..2..0....0..1..1..2..1....0..1..0..2..2
..2..0..2..0..0....2..2..0..0..2....1..1..0..2..2....2..2..2..0..1
..1..2..2..1..2....2..1..2..1..0....0..2..1..0..1....0..0..1..2..0
CROSSREFS
Sequence in context: A249950 A334734 A220298 * A346181 A197407 A197429
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 09 2013
STATUS
approved

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Last modified May 28 16:48 EDT 2024. Contains 372916 sequences. (Running on oeis4.)