OFFSET
1,1
COMMENTS
Column 3 of A275266.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 6*a(n-1) -4*a(n-2) -20*a(n-3) +28*a(n-4) -40*a(n-5) +8*a(n-6) +194*a(n-7) -180*a(n-8) +36*a(n-9) +56*a(n-10) -356*a(n-11) +201*a(n-12) +180*a(n-13) -108*a(n-14) for n>17
EXAMPLE
Some solutions for n=4
..0..1..1. .0..1..2. .0..1..2. .0..1..2. .0..1..0. .0..1..2. .0..1..0
..1..2..2. .0..1..0. .2..1..2. .2..2..0. .0..1..0. .0..1..0. .0..2..0
..2..2..0. .2..1..0. .0..1..2. .0..1..0. .2..1..2. .2..1..2. .0..2..0
..0..0..1. .0..1..0. .0..1..0. .0..1..0. .0..1..0. .2..1..0. .1..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jul 21 2016
STATUS
approved