OFFSET
1,3
COMMENTS
Column 2 of A279327.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 16*a(n-1) -68*a(n-2) -16*a(n-3) +300*a(n-4) +576*a(n-5) -992*a(n-6) -1856*a(n-7) -832*a(n-8) +1280*a(n-9) -256*a(n-10)
EXAMPLE
Some solutions for n=4
..0..1. .0..1. .0..1. .0..1. .0..1. .0..0. .0..1. .0..1. .0..1. .0..1
..0..1. .2..2. .2..2. .1..2. .0..0. .1..1. .1..0. .0..2. .1..0. .2..1
..2..2. .0..0. .0..0. .1..1. .1..2. .0..0. .0..0. .0..0. .2..2. .1..1
..1..2. .2..0. .0..2. .2..2. .2..0. .0..2. .1..1. .2..2. .2..1. .2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 09 2016
STATUS
approved