OFFSET
1,1
COMMENTS
Column 2 of A250927
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 27*a(n-1) -280*a(n-2) +1630*a(n-3) -6022*a(n-4) +14885*a(n-5) -25640*a(n-6) +31686*a(n-7) -28463*a(n-8) +18548*a(n-9) -8602*a(n-10) +2711*a(n-11) -526*a(n-12) +48*a(n-13)
EXAMPLE
Some solutions for n=3
..2..2..2....1..2..2....2..0..2....2..2..1....2..0..0....1..0..1....2..2..1
..0..0..0....0..2..2....2..0..2....1..2..2....1..2..1....0..0..2....2..2..1
..1..1..0....0..0..1....1..0..0....1..2..2....0..0..1....1..0..0....0..0..1
..1..2..1....0..0..0....2..1..0....0..2..2....1..0..1....2..2..1....0..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 28 2014
STATUS
approved