OFFSET
1,1
COMMENTS
Column 6 of A254539
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..4....6....8....8....8....4....6....8....1....4....4....6....6....1....1....4
..4....8....2....8....6....2....4....4....7....5....5....8....8....3....5....2
..8....7....8....2....6....4....2....6....4....6....1....1....1....6....4....4
..8....1....6....7....7....4....4....8....8....1....5....3....5....2....5....2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 01 2015
STATUS
approved