OFFSET
1,1
COMMENTS
Row 4 of A269052.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 6*a(n-1) +23*a(n-2) -102*a(n-3) -288*a(n-4) +250*a(n-5) +787*a(n-6) -238*a(n-7) -741*a(n-8) +124*a(n-9) +196*a(n-10) -16*a(n-11) -16*a(n-12) for n>14
EXAMPLE
Some solutions for n=4
..0..0..1..2. .1..2..1..0. .1..2..1..0. .2..2..2..2. .1..0..1..2
..1..0..1..0. .0..0..1..0. .2..2..2..2. .2..2..1..0. .1..2..1..2
..1..2..1..2. .1..0..1..0. .2..1..2..1. .2..2..1..0. .2..2..2..2
..1..0..2..2. .1..0..0..0. .2..1..0..1. .1..2..1..2. .1..1..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 18 2016
STATUS
approved