OFFSET
1,1
COMMENTS
Column 4 of A303456.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 14*a(n-1) -60*a(n-3) -434*a(n-4) -284*a(n-5) +588*a(n-6) +2516*a(n-7) +2538*a(n-8) +909*a(n-9) -2033*a(n-10) -2841*a(n-11) -1886*a(n-12) -1370*a(n-13) -740*a(n-14) -208*a(n-15)
EXAMPLE
Some solutions for n=5
..0..0..0..0. .0..0..0..1. .0..0..1..0. .0..0..1..0. .0..0..0..0
..0..1..1..0. .0..1..1..0. .1..0..0..1. .1..0..1..0. .0..1..1..0
..1..1..0..0. .1..1..1..0. .1..1..0..0. .0..1..1..1. .1..1..0..1
..1..1..0..0. .1..0..0..1. .0..1..1..0. .0..1..0..0. .0..0..0..0
..0..0..1..0. .0..1..0..0. .1..0..0..1. .0..0..1..0. .1..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 24 2018
STATUS
approved