1,2
Column 2 of A200272
Table of n, a(n) for n=1..30.
All solutions for n=6
..1....1....0....1....2
..0....2....0....1....2
..2....0....0....1....2
Sequence in context: A162226 A001650 A130175 * A101290 A080605 A130823
Adjacent sequences: A200263 A200264 A200265 * A200267 A200268 A200269
nonn
R. H. Hardin Nov 15 2011
approved