OFFSET
1,1
COMMENTS
Row 3 of A262420.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 10*a(n-1) +46*a(n-2) -460*a(n-3) -609*a(n-4) +6090*a(n-5) +2164*a(n-6) -21640*a(n-7) -1600*a(n-8) +16000*a(n-9).
EXAMPLE
Some solutions for n=4
..1..1..0..1..1....0..1..1..1..1....0..0..0..1..1....0..0..1..1..0
..0..0..1..1..0....1..1..1..1..0....1..1..0..1..1....0..1..0..0..1
..0..1..1..1..1....1..1..0..1..1....1..0..0..1..0....1..0..1..0..1
..0..1..1..0..0....1..0..1..0..1....1..0..1..0..1....0..1..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 22 2015
STATUS
approved