OFFSET
1,1
COMMENTS
Column 2 of A251451
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 9*a(n-1) +34*a(n-2) -100*a(n-3) -243*a(n-4) +272*a(n-5) +534*a(n-6) -258*a(n-7) -265*a(n-8) +231*a(n-9) -151*a(n-10) -110*a(n-11) +234*a(n-12) +2*a(n-13) -65*a(n-14) +20*a(n-15) +a(n-16) -4*a(n-17) +a(n-18)
EXAMPLE
Some solutions for n=3
..1..2..1....2..2..1....1..1..1....2..2..0....0..2..2....0..0..2....2..1..1
..1..2..1....1..1..1....0..1..1....1..1..2....2..1..1....0..2..0....1..0..2
..1..1..0....2..2..1....1..1..1....1..2..1....0..1..2....2..0..2....1..2..0
..1..0..2....0..2..1....2..2..1....2..1..1....1..1..2....0..2..2....1..2..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 02 2014
STATUS
approved