OFFSET
1,2
COMMENTS
Column 3 of A283203.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 10*a(n-1) -11*a(n-2) -20*a(n-3) -263*a(n-4) -506*a(n-5) -1037*a(n-6) -898*a(n-7) -488*a(n-8) +752*a(n-9) +1264*a(n-10) +842*a(n-11) -248*a(n-12) -744*a(n-13) -153*a(n-14) +170*a(n-15) +51*a(n-16) -12*a(n-17) -4*a(n-18).
EXAMPLE
Some solutions for n=4
..0..1..0. .0..0..1. .0..0..0. .1..1..0. .1..0..1. .1..0..0. .1..0..1
..0..1..0. .0..1..1. .1..0..0. .1..1..0. .1..1..1. .1..1..1. .1..1..0
..0..1..1. .0..0..1. .0..1..1. .1..0..1. .0..0..1. .1..0..1. .1..0..0
..0..1..1. .0..1..1. .1..1..1. .1..0..0. .0..1..0. .1..1..0. .0..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 02 2017
STATUS
approved