OFFSET
1,2
COMMENTS
a(n) is a perfect square when n is even. - Pontus von Brömssen, Sep 03 2024
LINKS
Pontus von Brömssen, Table of n, a(n) for n = 1..20
EXAMPLE
Some solutions for 3 X 3:
..0..3..4....0..5..4....4..3..2....0..3..2....0..3..4....0..5..2....0..3..2
..7..2..1....7..2..1....1..0..7....1..8..7....1..2..7....7..6..1....7..4..1
..6..5..8....6..3..8....6..5..8....6..5..4....6..5..8....4..3..8....6..5..8
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 19 2011
EXTENSIONS
More terms from Pontus von Brömssen, Sep 03 2024
STATUS
approved