OFFSET
1,1
COMMENTS
Column 4 of A250913
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 202*a(n-1) -6346*a(n-2) +54499*a(n-3) -108047*a(n-4) +2308813*a(n-5) -8304217*a(n-6) -16011215*a(n-7) +3358369*a(n-8) +18927043*a(n-9) -60255820*a(n-10) +18024160*a(n-11) +47390528*a(n-12) -6773760*a(n-13)
EXAMPLE
Some solutions for n=1
..1..1..2..2..0....1..2..2..1..2....2..0..2..2..2....2..1..2..0..0
..1..0..0..0..1....1..2..1..1..2....1..0..1..1..2....2..1..0..0..2
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 28 2014
STATUS
approved