OFFSET
1,1
COMMENTS
Column 5 of A252523
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 64*a(n-3) -1282*a(n-6) +10153*a(n-9) -38844*a(n-12) +79176*a(n-15) -91088*a(n-18) +63696*a(n-21) -29380*a(n-24) +8949*a(n-27) -1580*a(n-30) +142*a(n-33) -5*a(n-36) for n>39
EXAMPLE
Some solutions for n=4
..0..3..2..3..3..2..0....0..3..2..0..3..2..3....2..2..1..2..2..1..2
..3..3..2..0..3..2..3....2..2..1..2..2..1..2....3..3..2..0..3..2..3
..2..2..1..2..2..1..2....3..3..2..3..3..2..3....3..0..2..3..3..2..0
..3..3..2..3..3..2..3....3..3..2..3..3..2..3....2..2..1..2..2..1..2
..3..3..2..0..3..2..0....2..2..1..2..2..1..2....0..3..2..3..3..2..3
..2..2..1..2..2..1..2....0..3..2..3..3..2..3....3..3..2..3..3..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 18 2014
STATUS
approved