OFFSET
1,1
COMMENTS
Column 5 of A224190
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = (1009/907200)*n^10 + (913/36288)*n^9 + (15121/60480)*n^8 + (8677/6048)*n^7 + (226987/43200)*n^6 + (110621/8640)*n^5 + (3804217/181440)*n^4 + (206081/9072)*n^3 + (130433/8400)*n^2 + (3793/630)*n + 1
EXAMPLE
Some solutions for n=3
..0..1..0..0..0....0..1..2..1..1....0..0..1..1..1....0..1..2..1..1
..0..1..1..0..0....0..1..2..1..1....0..2..2..1..1....2..2..2..2..1
..1..2..2..2..2....0..1..2..2..2....0..2..2..1..1....2..2..2..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 01 2013
STATUS
approved