1,3

Diagonal of A216084

Table of n, a(n) for n=1..9.

Some solutions for n=4

..x..0..x..1....x..0..x..1....x..0..x..1....x..0..x..1....x..0..x..1

..2..x..3..x....2..x..3..x....2..x..3..x....2..x..0..x....2..x..3..x

..x..4..x..3....x..2..x..4....x..2..x..3....x..3..x..4....x..1..x..3

..3..x..4..x....0..x..2..x....0..x..2..x....5..x..3..x....3..x..4..x

Sequence in context: A303100 A302951 A208298 * A297949 A298558 A298768

Adjacent sequences: A216074 A216075 A216076 * A216078 A216079 A216080

nonn

R. H. Hardin Sep 01 2012

approved