OFFSET
1,1
COMMENTS
Column 4 of A297682.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 6*a(n-1) +10*a(n-2) +6*a(n-3) +26*a(n-4) -31*a(n-5) -a(n-6) -165*a(n-7) -22*a(n-8) +181*a(n-9) +39*a(n-10) -54*a(n-11) -15*a(n-12) +6*a(n-13) -4*a(n-14) -a(n-15) +2*a(n-16)
EXAMPLE
Some solutions for n=5
..1..0..0..0. .1..0..1..0. .0..0..0..1. .1..1..0..0. .0..0..0..0
..0..1..0..0. .1..0..1..0. .1..1..0..0. .0..0..0..1. .0..0..0..1
..0..1..0..1. .1..1..1..0. .0..0..0..0. .0..0..0..0. .1..0..0..1
..0..0..0..0. .0..0..0..0. .1..0..0..1. .0..0..0..0. .0..0..0..1
..0..1..0..1. .0..0..0..0. .1..0..1..0. .0..0..0..0. .1..0..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 03 2018
STATUS
approved