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A268088 Number of nX3 0..2 arrays with every repeated value in every row not one larger and in every column one larger mod 3 than the previous repeated value, and upper left element zero. 1
9, 243, 4608, 83349, 1339893, 20699712, 303284403, 4320438183, 59802048000, 811951057125, 10831783903677, 142591596848064, 1855468989421875, 23920516469271231, 305928653301448704, 3886833181740400197 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A268092.
LINKS
FORMULA
Empirical: a(n) = 27*a(n-1) -88*a(n-2) -2949*a(n-3) +19763*a(n-4) +105684*a(n-5) -917208*a(n-6) -1283256*a(n-7) +14673312*a(n-8) +279936*a(n-9) -60466176*a(n-10)
EXAMPLE
Some solutions for n=4
..0..1..1....0..1..0....0..1..1....0..2..2....0..0..0....0..2..2....0..0..1
..1..0..2....2..0..1....2..2..1....0..2..2....0..2..0....1..2..2....0..0..2
..0..2..1....1..0..1....1..0..2....1..0..0....1..2..2....1..1..0....1..1..1
..0..1..1....0..2..0....1..1..2....1..2..1....2..1..0....2..2..1....2..0..0
CROSSREFS
Cf. A268092.
Sequence in context: A251670 A075127 A267416 * A285511 A013733 A369533
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 26 2016
STATUS
approved

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Last modified June 17 08:36 EDT 2024. Contains 373439 sequences. (Running on oeis4.)