OFFSET
1,1
COMMENTS
Row 3 of A218897
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +7*a(n-2) -4*a(n-3) -6*a(n-4) -10*a(n-5) -20*a(n-6) +15*a(n-7) -a(n-8) +22*a(n-9) +14*a(n-10) -5*a(n-11) -6*a(n-13) -2*a(n-14)
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....1..0..0....1..0..0....1..0..0....0..0..1....1..0..1
..0..0..0....1..0..1....1..0..0....0..0..0....1..0..0....0..0..1....0..0..1
..0..0..0....0..0..1....0..0..0....0..0..0....0..0..1....0..0..0....1..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 08 2012
STATUS
approved