OFFSET
1,2
COMMENTS
Row 3 of A297733.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +4*a(n-2) -6*a(n-3) +7*a(n-4) -12*a(n-5) -19*a(n-6) +16*a(n-7) +10*a(n-8) +4*a(n-9)
EXAMPLE
Some solutions for n=7
..1..1..0..0..0..0..0. .0..0..1..1..1..1..1. .0..0..0..1..1..1..1
..0..1..1..0..1..1..0. .0..0..1..1..1..1..1. .1..1..0..1..1..1..1
..0..0..0..0..1..1..0. .0..0..0..0..0..0..0. .1..1..0..0..0..0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 04 2018
STATUS
approved