OFFSET
1,4
COMMENTS
Column 1 of A209058
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=7
..6....3....4....6....1....3....2....1....5....2....3....1....2....1....1....5
..4....4....1....1....1....4....2....1....1....2....3....1....4....1....1....5
..1....2....1....1....1....2....2....2....1....2....3....1....2....4....1....1
..1....3....1....1....2....3....2....2....1....2....3....3....3....1....1....1
..1....2....4....1....2....2....2....2....2....1....3....1....2....1....1....1
..4....4....1....1....2....4....1....2....5....1....3....1....4....1....1....5
..6....2....1....6....2....3....1....2....2....1....3....3....3....4....1....5
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 04 2012
STATUS
approved