OFFSET
1,1
COMMENTS
Column 7 of A232335
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 25*a(n-1) -144*a(n-2) -39*a(n-3) +579*a(n-4) +2066*a(n-5) +138*a(n-6) -5848*a(n-7) -13546*a(n-8) -13582*a(n-9) -7801*a(n-10) -927*a(n-11) +968*a(n-12) +737*a(n-13) +11*a(n-14) +8*a(n-15) -20*a(n-16) for n>18
EXAMPLE
Some solutions for n=4
..2..1..0..2..0..1..2....2..1..2..0..1..2..1....1..2..0..1..0..1..2
..2..1..0..1..0..1..2....2..0..1..2..1..2..0....0..1..2..1..0..1..2
..2..1..2..1..0..1..0....1..2..1..2..0..1..2....0..1..2..1..2..0..1
..0..1..2..1..0..1..2....1..0..1..2..0..1..0....2..1..2..0..1..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 22 2013
STATUS
approved