OFFSET
1,1
COMMENTS
Column 3 of A252811
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = a(n-1) +11*a(n-3) -11*a(n-4) -30*a(n-6) +30*a(n-7) -2*a(n-9) +2*a(n-10) +7*a(n-12) -7*a(n-13) -a(n-15) +a(n-16) for n>19
EXAMPLE
Some solutions for n=2
..0..1..2..0..3....0..1..2..3..1....0..1..2..3..1....0..1..2..3..4
..4..3..1..4..0....1..0..2..1..0....2..2..2..2..2....4..0..2..4..0
..2..0..3..2..4....2..2..2..2..2....1..3..2..1..4....2..2..2..2..2
..1..4..0..1..2....4..1..2..0..1....3..4..2..3..1....3..4..2..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 22 2014
STATUS
approved