1,2

Diagonal of A240893

Table of n, a(n) for n=1..9.

Some solutions for n=4

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

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

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

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

Sequence in context: A300103 A209317 A231491 * A209316 A221866 A270881

Adjacent sequences: A240884 A240885 A240886 * A240888 A240889 A240890

nonn

R. H. Hardin, Apr 14 2014

approved