OFFSET
1,2
COMMENTS
Row 6 of A183953
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
FORMULA
Empirical: a(n)=a(n-1)+a(n-4)-a(n-5)+a(n-9)-a(n-10)-a(n-13)+a(n-14)+a(n-16)-a(n-17)-a(n-20)+a(n-21)-a(n-34)+a(n-35)+a(n-36)-a(n-37)+a(n-38)-a(n-39)-a(n-40)+a(n-42)+a(n-49)-a(n-51)-a(n-52)+a(n-53)-a(n-54)+a(n-55)+a(n-56)-a(n-57)+a(n-70)-a(n-71)-a(n-74)+a(n-75)+a(n-77)-a(n-78)-a(n-81)+a(n-82)-a(n-86)+a(n-87)+a(n-90)-a(n-91)
EXAMPLE
Some solutions for n=3
..1....0....1....0....0....0....0....0....3....3....3....2....2....2....3....0
..0....1....2....1....0....1....2....2....3....3....3....0....1....1....2....2
..0....3....3....2....0....0....1....2....3....2....0....1....2....0....0....3
..2....1....0....0....0....2....1....2....1....0....2....0....3....1....0....3
..3....1....0....2....0....0....3....2....2....3....1....1....0....2....1....1
..0....1....2....1....3....2....0....0....0....0....1....2....1....1....2....0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 08 2011
STATUS
approved