OFFSET
1,1
COMMENTS
Column 7 of A202939
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = (1/151200)*n^10 + (1/840)*n^9 + (61/960)*n^8 + (47/28)*n^7 + (1307/50)*n^6 + (1296/5)*n^5 + (102078047/60480)*n^4 + (1210633/168)*n^3 + (91054793/3600)*n^2 + (2561054/35)*n + 126609
EXAMPLE
Some solutions for n=3
..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..1..0..0
..0..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..1..0..0
..0..0..0..0..0..0..0..1..1..1....0..0..0..0..0..0..1..1..1..0
..0..0..0..0..0..0..1..1..0..1....0..0..0..0..0..0..1..1..1..1
..0..0..0..0..0..0..1..0..0..1....0..0..0..0..0..0..1..1..1..1
..0..0..0..0..0..0..1..1..1..1....0..0..0..0..0..0..0..1..1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 26 2011
STATUS
approved