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A223109 Number of 6Xn 0..2 arrays with exactly floor(6Xn/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order 0
0, 16352, 6939648, 2870336499, 1153663937586, 460895553576913, 184306007437994168, 73918403027984409534, 29745203793179733648468, 12008412523648988394871332 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 6 of A223104
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..1..1....0..0..0....0..1..0....0..1..1....0..0..1....0..0..1....0..1..2
..2..0..1....1..2..1....1..2..2....1..2..1....1..1..0....1..2..1....0..1..0
..1..2..0....1..1..2....2..0..1....1..2..1....1..2..0....0..2..1....0..2..1
..1..0..2....2..1..0....1..2..0....0..2..1....1..2..1....2..1..2....0..0..0
..0..1..0....0..2..1....0..2..1....0..1..0....1..0..1....2..0..1....2..2..1
CROSSREFS
Sequence in context: A337417 A013690 A247826 * A126824 A236778 A344102
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 14 2013
STATUS
approved

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Last modified June 24 19:44 EDT 2024. Contains 373690 sequences. (Running on oeis4.)