OFFSET
1,1
COMMENTS
Row 3 of A252407
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 26*a(n-3) -179*a(n-6) +122*a(n-9) +562*a(n-12) -680*a(n-15) -425*a(n-18) +768*a(n-21) +19*a(n-24) -236*a(n-27) +24*a(n-30) for n>37
EXAMPLE
Some solutions for n=4
..1..3..3..1..3..3....2..2..3..2..2..3....2..2..0..2..2..3....1..0..3..1..0..3
..2..0..2..2..3..2....3..2..2..3..2..2....3..2..2..3..2..2....2..3..2..2..3..2
..2..2..3..2..2..3....0..1..3..3..1..3....3..1..3..3..1..3....2..2..3..2..2..3
..1..3..3..1..3..0....2..2..3..2..2..3....2..2..3..2..2..3....1..0..3..1..3..0
..2..0..2..2..0..2....3..2..2..3..2..2....3..2..2..0..2..2....2..3..2..2..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 17 2014
STATUS
approved