OFFSET

1,1

COMMENTS

Column 5 of A206676.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4:

..0..0..0..0..1..1....1..0..0..0..2..1....1..2..2..0..0..0....1..2..1..0..2..1

..0..0..2..1..1..1....0..0..0..1..0..0....2..2..2..0..0..1....0..2..2..1..1..2

..0..1..0..1..1..2....0..0..1..0..0..0....2..2..0..2..2..0....1..2..2..1..1..1

..1..0..0..2..0..1....0..1..0..0..0..1....2..0..2..2..2..1....0..2..1..2..1..1

..1..0..0..1..1..1....2..0..0..0..2..0....0..2..2..2..0..2....2..0..0..2..0..2

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 11 2012

STATUS

approved