OFFSET
1,1
COMMENTS
Row 4 of A250373
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = (13/105)*n^9 + (156/35)*n^8 + 31*n^7 + (2561/30)*n^6 + (626/5)*n^5 + (3197/30)*n^4 + (653/14)*n^3 + (1534/105)*n^2 + (271/30)*n + 1
EXAMPLE
Some solutions for n=2
..2....0....1....1....1....0....0....2....0....2....2....2....1....2....2....2
..2....1....0....0....0....2....1....1....1....2....1....0....0....0....2....1
..1....1....1....0....1....1....1....2....1....1....2....2....0....1....2....1
..1....1....1....2....0....0....2....0....0....0....1....0....2....2....2....1
..2....1....2....1....1....0....2....1....0....0....1....0....0....1....2....1
..1....2....2....1....2....0....1....0....0....2....0....0....1....1....2....0
..0....1....1....1....2....0....0....1....0....1....0....2....0....2....1....2
..2....0....2....2....1....2....1....1....1....2....2....2....2....2....2....0
..2....0....0....1....0....2....2....1....2....2....1....0....0....0....2....1
..0....1....1....0....1....1....0....2....0....1....2....0....0....1....2....2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 19 2014
STATUS
approved