OFFSET
1,2
COMMENTS
Column 3 of A297866.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 3*a(n-1) +4*a(n-2) -13*a(n-4) -8*a(n-5) -3*a(n-6) -4*a(n-7) +44*a(n-8) +33*a(n-9) -55*a(n-10) -42*a(n-11) +26*a(n-12) +16*a(n-13) -4*a(n-14) for n>16
EXAMPLE
Some solutions for n=7
..0..0..0. .0..0..1. .0..1..1. .0..0..1. .0..0..0. .0..0..1. .0..0..0
..0..1..0. .0..1..1. .0..0..1. .0..1..1. .0..1..0. .0..1..1. .0..1..0
..1..1..0. .0..1..1. .1..1..0. .1..0..0. .1..1..0. .1..0..0. .1..1..0
..1..0..0. .1..0..0. .1..0..0. .1..1..0. .1..0..0. .1..1..0. .0..0..1
..0..1..1. .0..1..0. .1..0..0. .0..1..1. .1..0..0. .1..0..0. .0..1..1
..0..0..1. .1..0..1. .1..0..1. .0..0..1. .0..1..1. .1..1..0. .0..1..1
..0..1..1. .1..1..1. .1..1..1. .0..1..1. .0..0..1. .1..0..0. .0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 07 2018
STATUS
approved