OFFSET
1,2
COMMENTS
Diagonal of A189498
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..21
EXAMPLE
Some solutions for n=5
..5...-4...-3....4...-1...-5...-2....1....4...-2....3...-4...-2...-1...-1....2
..3....5...-4....1....2....2...-3...-1...-1....4....3....4...-1...-4....2...-4
..4....3...-2....3....2....3....2...-3...-1....4....4....4...-5....4....1...-2
.-2...-3....3...-1....4....1...-3....5...-4....2...-4...-4...-5....2....1...-3
.-1...-2....4...-3...-5...-2...-1...-4...-1...-2....5...-4...-4...-2...-5...-4
..4...-4...-4....3...-4...-2...-5...-1....4....2....4...-5....1...-5....5....5
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 23 2011
STATUS
approved