OFFSET
1,1
COMMENTS
Row 7 of A268261.
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = n^8 + n^7 + 7*n^6 + 6*n^5 + 30*n^4 + 20*n^3 + 50*n^2 + 20*n + 15 for n>2
EXAMPLE
Some solutions for n=4
..2....0....0....3....2....1....0....2....0....1....4....3....1....3....1....1
..3....4....4....1....3....0....1....4....2....0....1....1....3....0....0....2
..4....3....3....3....1....1....3....0....4....4....2....4....2....2....4....0
..1....2....0....1....4....2....4....0....2....1....0....2....4....1....0....0
..3....3....4....0....2....4....0....4....4....0....3....1....2....2....0....2
..0....4....1....3....1....2....0....2....1....3....0....3....4....4....1....3
..3....0....0....0....2....1....1....1....0....0....2....2....1....2....4....0
..0....0....1....4....3....2....1....2....2....3....0....1....3....4....2....3
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 29 2016
STATUS
approved