OFFSET
1,1
COMMENTS
Row 3 of A206169
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 69*a(n-1) -1494*a(n-2) +9190*a(n-3) +49137*a(n-4) -662493*a(n-5) +655164*a(n-6) +11804292*a(n-7) -31347567*a(n-8) -49939173*a(n-9) +213341850*a(n-10) -92654442*a(n-11) -92175489*a(n-12) +40920957*a(n-13)
EXAMPLE
Some solutions for n=4
..0..0..1..1..2....0..0..0..0..0....0..0..0..0..1....0..0..1..0..0
..2..2..2..0..0....0..1..0..1..0....0..1..0..2..0....1..2..1..2..2
..1..2..1..2..0....1..0..1..0..1....3..1..3..1..3....1..1..0..1..2
..3..2..0..2..1....1..1..3..1..1....0..3..0..3..2....0..2..2..1..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 04 2012
STATUS
approved