OFFSET
1,1
COMMENTS
Column 6 of A235902
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 73*a(n-1) -1472*a(n-2) -10728*a(n-3) +630992*a(n-4) -1986032*a(n-5) -104786432*a(n-6) +555443712*a(n-7) +9789898752*a(n-8) -43326369792*a(n-9) -560505618432*a(n-10) +824673042432*a(n-11) +15817211117568*a(n-12) +30963778191360*a(n-13)
EXAMPLE
Some solutions for n=1
..1..2..0..2..1..1..1....2..0..0..0..1..1..1....0..0..0..0..1..1..1
..2..1..1..1..2..2..2....0..2..2..2..1..1..1....1..1..1..1..2..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 16 2014
STATUS
approved