1,2

Diagonal of A199149

Table of n, a(n) for n=1..6.

Some solutions for n=4

..0..0..1..1....0..0..1..1....0..0..1..1....0..1..1..1....0..0..1..1

..1..1..0..0....2..2..3..3....1..1..1..0....0..0..2..2....2..3..3..0

..2..2..0..3....2..2..0..0....2..0..0..0....2..2..3..2....2..0..0..0

..0..0..3..3....0..0..2..2....2..2..2..2....1..1..3..2....3..3..3..3

Sequence in context: A262643 A048796 A213203 * A152435 A239426 A157086

Adjacent sequences: A199138 A199139 A199140 * A199142 A199143 A199144

nonn

R. H. Hardin Nov 03 2011

approved