OFFSET
1,4
COMMENTS
Row 3 of A230614
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 15*a(n-1) -64*a(n-2) +61*a(n-3) +181*a(n-4) -210*a(n-5) -679*a(n-6) +577*a(n-7) +2166*a(n-8) -2571*a(n-9) -789*a(n-10) +760*a(n-11) +618*a(n-12) +264*a(n-13) +56*a(n-14) for n>17
EXAMPLE
Some solutions for n=4
..0..1..1..2....0..1..2..1....0..1..0..2....0..1..2..0....0..1..2..0
..2..0..0..2....0..0..2..1....2..0..1..0....0..2..1..0....0..1..1..0
..2..1..0..2....1..2..0..2....2..1..0..2....0..1..2..1....0..2..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 25 2013
STATUS
approved