OFFSET
1,2
COMMENTS
Column 2 of A198669
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
FORMULA
Empirical: a(n) = 12*a(n-1) -18*a(n-2) -96*a(n-3) -43*a(n-4) +384*a(n-5) +1030*a(n-6) +276*a(n-7) -1609*a(n-8) -3144*a(n-9) -1688*a(n-10) +1080*a(n-11) +1536*a(n-12) +768*a(n-13) -512*a(n-14) for n>16
EXAMPLE
Some solutions with all values 0 to 4 for n=6
..0..0....0..1....0..1....0..0....0..0....0..0....0..0....0..1....0..0....0..1
..1..2....0..1....0..1....1..1....1..1....1..2....1..1....0..1....1..0....0..1
..1..2....1..1....2..1....2..3....2..2....1..2....2..2....2..3....1..2....2..3
..3..3....2..2....2..2....2..3....3..3....3..0....3..4....2..3....3..2....2..3
..1..1....3..3....3..4....1..4....3..3....3..0....3..4....3..4....3..3....4..2
..4..4....4..4....3..4....1..4....4..4....4..4....4..4....3..4....4..4....4..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 28 2011
STATUS
approved