1,1

Diagonal of A229105.

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

Some solutions for n=4

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0

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

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

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

Sequence in context: A206832 A206894 A207284 * A060757 A136807 A057156

Adjacent sequences: A229097 A229098 A229099 * A229101 A229102 A229103

nonn

R. H. Hardin, Sep 13 2013

approved