OFFSET
1,2
COMMENTS
Column 3 of A300146.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +3*a(n-2) +18*a(n-3) -21*a(n-4) -54*a(n-5) -54*a(n-6) +79*a(n-7) +119*a(n-8) +4*a(n-9) -3*a(n-10) -a(n-11) +26*a(n-12) -53*a(n-13) -17*a(n-14) +15*a(n-15) for n>17
EXAMPLE
Some solutions for n=5
..0..1..1. .0..1..1. .0..0..1. .0..1..0. .0..0..0. .0..0..0. .0..0..1
..0..1..1. .0..1..1. .0..0..1. .0..1..0. .0..0..0. .0..0..0. .0..0..1
..1..1..1. .0..0..0. .1..1..1. .1..1..1. .1..1..1. .0..0..0. .0..0..0
..1..1..0. .0..0..0. .1..1..0. .1..1..0. .1..1..1. .0..1..0. .1..0..1
..1..1..0. .0..0..0. .1..1..0. .1..1..0. .1..1..1. .0..1..0. .1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 26 2018
STATUS
approved