OFFSET
1,1
COMMENTS
Column 3 of A227751
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +12*a(n-2) +44*a(n-3) +71*a(n-4) +78*a(n-5) +40*a(n-6) -7*a(n-7) -33*a(n-8) -14*a(n-9) +11*a(n-10) -a(n-11) -4*a(n-12) +a(n-13)
EXAMPLE
Some solutions for n=4
..1..1..0....0..1..1....0..0..0....1..0..1....0..0..1....0..0..0....1..0..1
..0..1..0....0..0..0....0..0..0....0..0..0....0..0..0....0..1..1....0..0..0
..1..0..1....1..0..0....0..1..0....1..0..0....0..0..1....0..0..0....0..1..0
..1..0..0....0..1..0....0..0..0....1..0..1....0..0..0....1..0..0....1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 25 2013
STATUS
approved