OFFSET
1,1
COMMENTS
Row 4 of A239155
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 20*a(n-1) +125*a(n-2) -466*a(n-3) -1721*a(n-4) +3476*a(n-5) +3342*a(n-6) -3082*a(n-7) -5349*a(n-8) -4488*a(n-9) +8976*a(n-10) +2826*a(n-11) -2862*a(n-12) -324*a(n-13) +243*a(n-14)
EXAMPLE
Some solutions for n=4
..0..1..1..2..3....0..1..2..0..3....0..1..0..0..1....0..1..0..2..0
..0..1..1..2..3....0..1..2..0..3....0..1..0..0..1....0..1..0..2..0
..0..1..0..1..3....0..1..0..0..3....0..1..0..0..1....0..1..0..1..3
..0..2..0..1..3....2..0..0..2..3....1..2..0..3..0....3..0..3..1..3
..0..2..0..1..3....2..0..0..2..3....1..2..0..3..0....3..0..3..1..3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 11 2014
STATUS
approved