OFFSET
1,1
COMMENTS
Row 3 of A258631.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=8
..6....7....6....6....5....4....7....8....9....3....8....2....9....2....3....3
..8....2....9....4....5....6....1....6....7....3....2....1....9....5....6....1
..4....7....7....4....8....8....6....7....4....2....6....9....6....8....6....4
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 06 2015
STATUS
approved