OFFSET
1,1
COMMENTS
Column 4 of A218897.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 6*a(n-1) +3*a(n-2) -25*a(n-3) -29*a(n-4) +53*a(n-5) +33*a(n-6) +12*a(n-7) -38*a(n-8) -18*a(n-10) +12*a(n-11) -15*a(n-12) +7*a(n-13) +4*a(n-14).
EXAMPLE
Some solutions for n=3
..1..0..1..1....0..0..0..0....1..1..1..1....1..1..0..0....1..1..1..1
..0..0..1..0....0..0..0..0....0..0..0..0....0..0..0..0....0..1..0..1
..1..0..0..0....1..1..1..1....0..0..0..0....0..0..0..1....0..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 08 2012
STATUS
approved