1,1
Diagonal of A251149.
Table of n, a(n) for n=1..13.
Some solutions for n=4:
..1..0..1..1..1....1..1..1..1..1....0..1..0..2..1....1..1..0..1..1
..2..1..2..0..2....1..1..1..1..1....1..2..1..1..0....1..1..2..1..1
..1..0..1..1..1....0..2..0..2..0....0..1..0..2..1....2..0..1..0..2
..1..2..1..1..1....1..1..1..1..1....1..2..1..1..0....1..1..2..1..1
..0..1..0..2..0....1..1..1..1..1....1..0..1..1..2....1..1..0..1..1
Cf. A251149.
Sequence in context: A158480 A009951 A274974 * A319086 A146287 A289999
Adjacent sequences: A251139 A251140 A251141 * A251143 A251144 A251145
nonn
R. H. Hardin, Nov 30 2014
approved