OFFSET
1,1
COMMENTS
Column 7 of A300350.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 5*a(n-1) -8*a(n-2) +4*a(n-3) +a(n-8) -3*a(n-9) +4*a(n-10) -2*a(n-11) +a(n-12) -a(n-13) -a(n-18) +a(n-19) for n>25.
EXAMPLE
Some solutions for n=5
..0..1..1..0..0..1..0. .0..0..1..0..0..0..0. .0..1..0..1..0..1..1
..0..1..0..1..0..1..0. .0..1..0..1..1..1..1. .0..1..0..1..0..0..1
..0..0..1..0..1..0..1. .1..0..1..0..0..0..0. .0..1..0..1..1..0..0
..1..1..0..1..0..1..0. .1..0..1..1..1..1..0. .0..1..0..0..1..1..1
..0..0..1..0..1..0..0. .1..0..0..0..0..1..1. .0..1..1..0..0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 03 2018
STATUS
approved