OFFSET
1,1
COMMENTS
Column 1 of A256771
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 8*a(n-1) -144*a(n-3) +272*a(n-4) +704*a(n-5) -2304*a(n-6) +5120*a(n-8) -4096*a(n-9)
EXAMPLE
Some solutions for n=4
..1..0..0....1..0..0....1..1..1....1..0..1....1..1..0....1..1..0....0..0..0
..1..1..0....0..0..1....0..0..0....0..0..0....1..0..0....1..0..0....0..1..0
..1..1..1....1..1..1....1..0..1....0..1..0....1..1..0....1..0..0....1..1..1
..0..0..0....0..0..1....0..1..0....1..0..1....0..0..0....1..1..1....1..1..1
..0..1..0....0..0..0....0..0..1....0..0..0....1..1..1....0..1..0....0..0..1
..1..0..1....0..0..1....1..0..1....0..0..1....1..1..1....0..1..1....0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 09 2015
STATUS
approved