1,1
Column 5 of A220259
Table of n, a(n) for n=1..6.
Some solutions for n=3
..0..1..0..0..1....0..0..0..0..1....1..0..1..0..0....1..0..0..0..0
..0..1..0..0..0....0..1..0..0..0....0..0..1..0..0....1..0..0..1..1
..1..0..0..1..0....1..1..1..1..0....1..0..0..1..0....0..0..1..0..1
Sequence in context: A296596 A196853 A196947 * A220322 A279302 A227052
Adjacent sequences: A220255 A220256 A220257 * A220259 A220260 A220261
nonn
R. H. Hardin Dec 08 2012
approved