OFFSET
1,2
COMMENTS
Row 3 of A189449
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..200
FORMULA
Empirical: a(n) = 6*a(n-1) +26*a(n-2) -72*a(n-3) -195*a(n-4) +284*a(n-5) +555*a(n-6) -424*a(n-7) -555*a(n-8) +284*a(n-9) +195*a(n-10) -72*a(n-11) -26*a(n-12) +6*a(n-13) +a(n-14)
EXAMPLE
Some solutions for 3X3
..1..0..2....0..2..1....0..1..2....0..2..1....0..1..2....1..0..2....0..5..2
..3..4..5....3..8..5....4..3..5....4..3..5....4..3..5....7..5..4....3..4..1
..7..6..8....6..7..4....6..8..7....6..8..7....7..6..8....6..3..8....6..8..7
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 22 2011
STATUS
approved