OFFSET

1,3

COMMENTS

Row 4 of A231037

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

..2..1..2....1..2..1....1..2..1....1..2..1....2..1..2....2..1..2....1..2..1

CROSSREFS

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 03 2013

STATUS

approved