OFFSET
1,1
COMMENTS
Column 4 of A240893
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 8*a(n-1) +9*a(n-2) -63*a(n-3) +36*a(n-4) -405*a(n-5) -608*a(n-6) +600*a(n-7) +424*a(n-8) +4600*a(n-9) +10176*a(n-10) +9216*a(n-11) -2560*a(n-12) -29312*a(n-13) -40448*a(n-14) -30720*a(n-15) -16384*a(n-16)
EXAMPLE
Some solutions for n=4
..0..1..2..1....0..1..2..1....0..1..2..0....0..1..2..1....0..1..0..2
..2..0..1..0....1..0..1..2....1..2..1..2....1..0..1..0....1..0..2..1
..0..2..0..2....0..1..0..1....2..0..2..0....0..2..0..2....0..2..1..0
..2..0..1..0....2..0..1..2....0..2..1..2....2..0..1..0....2..1..0..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 14 2014
STATUS
approved