OFFSET
1,1
COMMENTS
Column 6 of A278734.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..19
EXAMPLE
Some solutions for n=1
..1..0..0..0..0..1. .1..1..0..2..2..2. .0..3..3..3..3..0. .0..0..3..3..3..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 27 2016
STATUS
approved