OFFSET
1,1
COMMENTS
Column 8 of A243641
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 15*a(n-1) -76*a(n-2) +78*a(n-3) +554*a(n-4) -1518*a(n-5) -1000*a(n-6) +6492*a(n-7) -505*a(n-8) -13105*a(n-9) +2036*a(n-10) +13670*a(n-11) +672*a(n-12) -5632*a(n-13) -1680*a(n-14)
EXAMPLE
Some solutions for n=5
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
..0....1....1....1....0....0....1....1....1....0....1....1....1....0....1....1
..1....1....1....1....1....1....1....1....0....0....0....0....0....0....0....1
..0....1....2....0....1....1....0....1....1....0....0....0....0....1....0....1
..0....2....1....0....2....1....0....1....1....0....1....2....0....1....0....0
..1....2....1....0....2....2....1....1....1....1....1....2....2....2....2....0
..0....2....2....2....3....2....1....2....0....0....2....1....2....1....0....1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 08 2014
STATUS
approved