OFFSET
1,1
LINKS
Andrew Howroyd, Table of n, a(n) for n = 1..100
EXAMPLE
Some solutions for n=4
..0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0....0..0
..0..0....1..1....0..1....0..1....1..0....0..0....1..1....0..0....0..0....0..0
..1..1....1..1....1..1....1..1....1..1....1..1....1..1....1..1....1..2....1..1
..2..1....0..0....0..1....0..2....1..0....1..2....0..2....1..1....3..2....2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 22 2012
EXTENSIONS
Terms a(16) and beyond from Andrew Howroyd, Jul 01 2017
STATUS
approved