OFFSET
1,1
COMMENTS
Column 2 of A235223
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 16*a(n-1) +52*a(n-2) -188*a(n-3) -10*a(n-4) +188*a(n-5) -29*a(n-6) -40*a(n-7) +10*a(n-8)
EXAMPLE
Some solutions for n=3
..1..1..2....1..1..1....0..1..2....0..2..1....0..1..1....0..0..2....0..0..0
..1..2..1....1..2..1....1..0..1....0..1..0....0..1..1....0..1..2....0..1..2
..2..2..2....1..2..2....1..1..1....1..2..1....1..1..1....2..2..2....1..2..1
..1..1..1....1..2..2....1..1..0....0..0..1....2..2..0....1..1..0....1..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 05 2014
STATUS
approved