OFFSET
1,3
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..99
FORMULA
Empirical: a(n) = a(n-1) +2*a(n-3) -2*a(n-4) -a(n-6) +a(n-7) +a(n-9) -a(n-11) -2*a(n-12) +2*a(n-14) +a(n-15) -a(n-17) -a(n-19) +a(n-20) +2*a(n-22) -2*a(n-23) -a(n-25) +a(n-26)
EXAMPLE
Some solutions for n=5
..5..3....1..2....3..0....4..5....1..1....1..4....3..1....5..3....0..2....2..4
..2..0....1..5....3..3....3..5....1..4....2..5....0..4....2..3....0..1....1..4
..4..4....2..2....4..0....4..2....2..1....4..1....2..0....5..2....3..2....2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 04 2011
STATUS
approved