OFFSET
1,1
COMMENTS
Column 6 of A248537
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +8*a(n-4) -8*a(n-5) -19*a(n-8) +19*a(n-9) +13*a(n-12) -13*a(n-13) -4*a(n-16) +4*a(n-17)
EXAMPLE
Some solutions for n=6
..3....6....3....2....1....5....4....3....4....5....5....2....6....4....5....1
..3....4....0....5....2....3....6....2....1....2....4....6....4....3....4....5
..6....0....3....1....0....2....1....6....1....3....4....1....1....3....6....3
..0....6....6....0....5....2....5....1....2....2....3....3....5....2....1....3
..3....6....3....2....1....5....4....3....0....1....5....2....6....4....5....1
..3....4....0....1....2....3....6....2....5....2....4....2....4....3....4....5
..2....0....3....1....0....2....5....6....1....3....4....1....1....3....6....3
..0....6....2....0....1....2....1....1....2....6....3....3....5....6....5....3
..3....6....3....2....1....5....4....3....0....1....5....2....6....0....5....1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 08 2014
STATUS
approved