1,2
Diagonal of A318214.
Table of n, a(n) for n=1..10.
Some solutions for n=5
..0..1..0..0..1. .0..1..1..0..0. .0..0..0..1..1. .0..1..1..1..1
..1..1..0..1..1. .1..1..0..0..1. .1..1..0..1..0. .1..0..0..1..0
..0..0..0..0..1. .1..0..0..1..1. .1..0..1..1..1. .1..1..1..1..1
..0..1..0..1..1. .0..0..0..0..0. .0..1..1..1..1. .1..1..1..1..1
..1..1..1..1..0. .0..1..0..0..1. .0..0..0..0..0. .0..0..0..0..0
Cf. A318214.
Sequence in context: A356292 A012087 A012194 * A341851 A132414 A041171
Adjacent sequences: A318205 A318206 A318207 * A318209 A318210 A318211
nonn
R. H. Hardin, Aug 21 2018
approved