OFFSET
1,1
COMMENTS
Column 5 of A302081.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +17*a(n-2) -38*a(n-3) -68*a(n-4) +136*a(n-5) +64*a(n-6) -128*a(n-7) for n>9.
EXAMPLE
Some solutions for n=5
..0..1..0..1..0. .0..1..1..1..0. .0..1..0..1..0. .0..1..0..1..0
..0..1..1..1..0. .0..1..0..1..1. .0..0..1..1..0. .0..1..1..0..0
..0..1..0..1..1. .0..0..0..0..1. .0..1..0..1..0. .0..1..0..1..0
..0..1..0..0..1. .1..0..1..0..1. .0..0..0..1..0. .0..1..0..1..0
..0..1..1..0..0. .1..1..1..0..0. .0..1..0..0..0. .0..1..1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 31 2018
STATUS
approved