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1,1
Column 6 of A262488.
Table of n, a(n) for n=1..7.
Some solutions for n=4
..0..0..1..0..0..0..0..0..1....0..1..0..0..0..0..0..1..0
..0..0..1..0..1..1..0..1..1....0..0..1..1..0..1..0..0..0
..1..0..1..0..1..1..1..1..1....1..0..0..0..1..0..0..0..1
..1..0..0..0..0..0..1..0..0....1..1..0..0..1..0..0..1..1
..0..0..1..0..1..1..0..1..1....0..1..1..1..0..1..0..1..0
..1..0..0..0..0..0..1..0..0....1..1..1..1..1..1..0..1..1
..0..0..1..0..0..0..0..0..1....0..0..1..1..0..1..0..0..0
Cf. A262488.
Sequence in context: A211155 A250994 A250995 * A264547 A251210 A211497
Adjacent sequences: A262484 A262485 A262486 * A262488 A262489 A262490
nonn
R. H. Hardin, Sep 24 2015
approved