OFFSET
1,1
COMMENTS
Column 1 of A205235.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 5*a(n-1) +8*a(n-2) -69*a(n-3) +389*a(n-5) -198*a(n-6) -1143*a(n-7) +865*a(n-8) +1830*a(n-9) -1686*a(n-10) -1468*a(n-11) +1612*a(n-12) +376*a(n-13) -616*a(n-14) +96*a(n-15).
EXAMPLE
Some solutions for n=4
..2..2....0..1....2..0....0..1....0..2....1..2....1..1....2..1....1..0....2..2
..0..2....2..2....0..2....2..0....2..0....1..2....1..0....0..2....2..1....0..1
..2..1....2..1....2..0....1..1....1..2....2..1....1..2....2..2....1..1....2..0
..1..2....2..2....1..2....0..2....1..2....2..2....2..1....1..1....2..1....2..1
..2..2....1..2....1..2....2..2....1..2....2..2....2..2....2..2....1..2....0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 24 2012
STATUS
approved