OFFSET
1,1
COMMENTS
Column 3 of A316218.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 2*a(n-1) +4*a(n-2) +5*a(n-3) -13*a(n-4) -31*a(n-5) -25*a(n-6) +30*a(n-7) +75*a(n-8) +66*a(n-9) -11*a(n-10) -52*a(n-11) -18*a(n-12) -12*a(n-13) -24*a(n-14) -27*a(n-15) for n>16
EXAMPLE
Some solutions for n=5
..0..0..0. .0..1..0. .0..1..0. .0..0..0. .0..1..0. .0..1..0. .0..0..0
..0..0..0. .0..0..0. .1..0..0. .1..0..1. .0..0..0. .1..0..0. .1..0..0
..0..0..1. .1..0..0. .0..0..0. .1..0..1. .0..0..0. .0..0..0. .0..0..0
..0..0..0. .1..0..0. .0..0..0. .0..0..0. .0..0..1. .0..0..1. .0..0..0
..0..1..0. .1..1..1. .1..1..0. .0..0..0. .0..0..0. .0..0..1. .0..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 26 2018
STATUS
approved