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A267953 Number of nX3 0..2 arrays with every repeated value in every row and column unequal to the previous repeated value, and new values introduced in row-major sequential order. 1
4, 96, 1625, 30145, 493087, 8239879, 130870815, 2082478515, 32398824901, 502697528961, 7715771272901, 118070156191861, 1796719487307091, 27277256454891739, 412863240478890453, 6238891286484403929 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A267957.
LINKS
FORMULA
Empirical recurrence of order 56 (see link above)
EXAMPLE
Some solutions for n=4
..0..1..0....0..1..1....0..0..1....0..0..1....0..1..1....0..1..0....0..1..0
..0..2..2....1..2..2....2..1..2....0..1..0....2..1..0....1..2..0....2..0..1
..1..0..0....2..0..0....0..1..1....1..0..1....0..2..0....2..2..1....0..2..1
..1..0..2....1..2..2....2..2..1....0..2..1....1..0..2....0..1..1....1..2..2
CROSSREFS
Cf. A267957.
Sequence in context: A269091 A204973 A204700 * A206645 A267907 A361965
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 22 2016
STATUS
approved

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Last modified July 15 08:33 EDT 2024. Contains 374324 sequences. (Running on oeis4.)