OFFSET
1,1
COMMENTS
Column 1 of A237067
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 5*a(n-1) +20*a(n-2) -121*a(n-3) -85*a(n-4) +876*a(n-5) +42*a(n-6) -2664*a(n-7) +168*a(n-8) +3696*a(n-9) -144*a(n-10) -2176*a(n-11) +384*a(n-13)
EXAMPLE
Some solutions for n=5
..2..1....1..2....1..2....0..2....2..2....0..2....1..2....2..0....0..1....1..2
..2..0....1..2....2..2....2..0....0..1....2..1....0..1....0..2....2..1....0..0
..0..1....1..2....1..2....2..0....2..2....2..0....0..1....2..0....0..1....1..2
..2..0....2..1....0..2....0..2....1..0....1..0....1..0....0..2....0..1....0..0
..2..1....1..2....1..2....0..2....2..0....0..2....0..1....0..2....0..1....1..2
..1..1....1..2....0..0....0..2....1..0....2..1....1..2....0..2....0..1....0..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 03 2014
STATUS
approved