OFFSET
1,2
COMMENTS
Column 2 of A263703.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +a(n-2) +7*a(n-5) +2*a(n-6) +a(n-7) +5*a(n-8) -4*a(n-9) -3*a(n-10) -3*a(n-11) -4*a(n-12) -4*a(n-14) -a(n-15) +3*a(n-16) -a(n-17) +a(n-19)
EXAMPLE
Some solutions for n=7
..1....0....1....0....0....1....0....1....0....1....0....0....2....1....1....0
..0....1....0....1....3....0....1....0....3....0....3....1....0....3....0....1
..3....3....2....4....1....2....3....2....1....4....2....3....3....0....2....4
..2....2....4....2....5....4....5....3....4....2....1....2....1....4....4....5
..5....6....5....3....2....6....2....6....2....3....4....5....4....2....3....2
..6....4....3....6....6....3....6....4....6....5....5....6....5....5....5....3
..4....5....6....5....4....5....4....5....5....6....6....4....6....6....6....6
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 24 2015
STATUS
approved