OFFSET
1,1
COMMENTS
Row 7 of A250336
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = (202/105)*n^9 + (249/10)*n^8 + (217/2)*n^7 + 224*n^6 + 267*n^5 + (2031/10)*n^4 + (1301/42)*n^3 - 129*n^2 - (422/5)*n + 1
EXAMPLE
Some solutions for n=2
..0....1....2....2....0....0....0....0....0....1....0....1....2....2....2....1
..0....1....2....1....2....1....2....1....0....0....0....2....0....1....2....0
..0....2....1....1....1....1....0....1....2....2....2....1....1....2....0....0
..0....1....0....0....1....0....1....1....1....0....1....2....2....0....1....0
..1....1....0....2....2....1....0....0....2....1....1....0....2....1....0....0
..2....2....1....0....1....1....0....2....1....1....2....0....2....1....1....1
..0....0....1....2....1....2....0....0....1....2....1....1....2....2....1....0
..0....0....1....1....1....2....0....1....1....1....1....1....2....1....1....0
..0....1....2....1....1....0....0....1....0....1....1....1....1....0....2....0
..0....1....1....1....1....1....1....2....1....2....1....2....2....1....0....2
..2....1....0....1....0....1....2....0....1....1....0....2....2....2....0....0
..2....1....1....2....2....1....0....2....1....0....2....1....1....0....2....1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 19 2014
STATUS
approved