1,1

Diagonal of A206150.

R. H. Hardin, Table of n, a(n) for n = 1..13

Some solutions for n=4:

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

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

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

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

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

Sequence in context: A044986 A237160 A236886 * A225027 A225020 A219131

Adjacent sequences: A206139 A206140 A206141 * A206143 A206144 A206145

nonn

R. H. Hardin, Feb 04 2012

approved