OFFSET
1,1
COMMENTS
Column 6 of A254947
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=4
..3....2....6....5....5....4....5....7....4....3....5....4....2....2....7....4
..5....5....2....2....3....3....7....1....3....7....6....6....1....3....4....4
..4....5....3....7....2....3....6....4....4....4....4....2....6....2....3....3
..3....3....5....7....6....5....6....3....7....4....6....3....1....5....1....3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 10 2015
STATUS
approved