OFFSET
1,1
COMMENTS
Column 4 of A251567
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=1
..4..0..0..2..5....2..0..1..5..4....2..0..7..4..6....2..0..4..4..3
..1..2..0..3..7....0..0..1..0..4....0..0..0..2..7....0..0..7..4..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 04 2014
STATUS
approved