OFFSET
1,1
COMMENTS
Row 4 of A202864.
FORMULA
Empirical: a(n) = (2789/37800)*n^10 + (2789/3780)*n^9 + (6673/2520)*n^8 + (73/21)*n^7 - (1673/1800)*n^6 - (929/180)*n^5 - (14359/7560)*n^4 + (521/189)*n^3 + (3487/3150)*n^2 - (17/21)*n.
EXAMPLE
Some solutions for n=3
..0..2..0..3....0..1..0..2....2..0..2..2....0..0..1..3....0..0..1..3
..0..2..1..3....0..1..0..3....0..3..1..3....0..2..3..0....1..2..1..1
..2..0..3..2....1..1..3..0....2..1..3..2....1..0..2..3....2..0..2..2
..3..2..3..0....2..1..2..1....2..3..2..2....3..3..0..1....1..3..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 25 2011
STATUS
approved