OFFSET
1,1
COMMENTS
Column 7 of A208709
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 83*a(n-1) -710*a(n-2) +3004*a(n-3) -7952*a(n-4) +16752*a(n-5) -27360*a(n-6) +33984*a(n-7) -26368*a(n-8) for n>10
EXAMPLE
Some solutions for n=4
..0..0..0..1..0..1..0....0..0..1..0..1..1..1....0..0..0..0..0..1..1
..0..1..1..0..1..1..0....0..0..1..1..0..1..1....0..1..0..1..1..0..1
..1..0..0..0..1..0..0....0..1..0..0..1..0..0....1..1..1..0..0..1..0
..1..1..0..1..0..1..0....0..0..1..0..0..1..1....0..1..0..1..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 01 2012
STATUS
approved