1,1

Row 2 of A223391

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

Some solutions for n=3

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

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

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

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

Sequence in context: A208693 A207563 A207418 * A207390 A207518 A207067

Adjacent sequences: A223390 A223391 A223392 * A223394 A223395 A223396

nonn

R. H. Hardin Mar 19 2013

approved