OFFSET
1,1
COMMENTS
Column 5 of A237015
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..68
FORMULA
Empirical: a(n) = 8*a(n-1) +16*a(n-2) -268*a(n-3) +189*a(n-4) +3388*a(n-5) -5824*a(n-6) -20048*a(n-7) +49756*a(n-8) +52752*a(n-9) -196896*a(n-10) -24192*a(n-11) +369216*a(n-12) -131328*a(n-13) -262656*a(n-14) +165888*a(n-15)
EXAMPLE
Some solutions for n=4
..1..2..0..1..1..2....1..2..1..2..2..1....1..3..1..1..0..2....1..3..1..1..1..2
..0..1..1..2..0..1....1..1..1..1..0..2....2..1..2..3..3..2....2..1..2..3..2..2
..1..2..0..1..1..2....1..2..1..2..2..1....2..2..2..0..1..1....1..3..1..1..1..2
..0..1..1..2..0..1....2..0..2..0..1..1....2..1..2..3..3..2....2..1..2..3..2..2
..1..2..0..1..1..2....2..1..2..1..3..0....2..2..2..0..1..1....2..2..2..0..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 02 2014
STATUS
approved