1,1

Diagonal of A230708

Table of n, a(n) for n=1..10.

Some solutions for n=2

..0..x..2..x..2....0..x..0..x..1....0..x..2..x..2....0..x..0..x..1

..x..1..x..0..x....x..1..x..2..x....x..1..x..0..x....x..1..x..2..x

..0..x..2..x..1....2..x..1..x..0....0..x..1..x..2....0..x..2..x..1

..x..1..x..2..x....x..0..x..1..x....x..2..x..0..x....x..2..x..0..x

..0..x..0..x..1....2..x..2..x..0....1..x..1..x..2....1..x..1..x..2

Sequence in context: A238817 A202942 A177400 * A168554 A152792 A085602

Adjacent sequences: A230697 A230698 A230699 * A230701 A230702 A230703

nonn

R. H. Hardin, Oct 28 2013

approved