1,1

Diagonal of A220204

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

Some solutions for n=3

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

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

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

Sequence in context: A003086 A102958 A321795 * A299880 A085649 A152396

Adjacent sequences: A220194 A220195 A220196 * A220198 A220199 A220200

nonn

R. H. Hardin Dec 07 2012

approved