OFFSET
1,2
COMMENTS
Column 3 of A316648.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +4*a(n-2) +13*a(n-3) -13*a(n-4) -46*a(n-5) -59*a(n-6) +53*a(n-7) +153*a(n-8) +98*a(n-9) -60*a(n-10) -140*a(n-11) -7*a(n-12) +67*a(n-13) +15*a(n-14) -78*a(n-15) -48*a(n-16) -32*a(n-17)
EXAMPLE
Some solutions for n=5
..0..1..0. .0..1..0. .0..1..1. .0..0..0. .0..0..1. .0..1..1. .0..1..0
..1..0..0. .0..1..0. .1..0..1. .1..1..0. .1..1..1. .0..0..0. .0..1..0
..0..0..0. .0..0..0. .1..1..1. .1..1..0. .0..0..1. .0..0..0. .1..1..1
..0..1..0. .0..1..0. .1..1..0. .0..0..0. .1..1..1. .1..0..1. .1..1..1
..1..0..0. .0..0..0. .1..0..1. .1..1..0. .0..0..1. .1..0..1. .1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 09 2018
STATUS
approved