OFFSET
1,1
COMMENTS
Row 3 of A224262
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = (1/19160064)*n^12 + (1/1064448)*n^11 + (181/6220800)*n^10 + (557/1451520)*n^9 + (13571/2903040)*n^8 + (3197/96768)*n^7 + (8451841/43545600)*n^6 + (316789/483840)*n^5 + (535159/311040)*n^4 + (151169/72576)*n^3 + (9281749/1663200)*n^2 - (73057/13860)*n + 5
EXAMPLE
Some solutions for n=3
..0..0..1....0..1..0....1..2..1....0..0..2....0..0..0....1..1..0....0..0..0
..2..2..1....1..2..0....2..2..2....0..1..2....0..1..0....2..1..0....0..1..0
..2..2..1....2..2..0....2..2..2....1..2..2....0..1..0....2..2..1....2..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 02 2013
STATUS
approved