OFFSET
1,2
COMMENTS
Column 2 of A221551
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 11*a(n-1) -25*a(n-2) -46*a(n-3) +164*a(n-4) +129*a(n-5) -513*a(n-6) -301*a(n-7) +913*a(n-8) +562*a(n-9) -943*a(n-10) -675*a(n-11) +513*a(n-12) +436*a(n-13) -128*a(n-14) -111*a(n-15) +17*a(n-16) +6*a(n-17)
EXAMPLE
Some solutions for n=3
..1..1....1..1....0..1....0..1....1..1....1..1....0..2....0..1....0..2....0..1
..0..1....2..1....1..1....2..1....2..0....0..2....1..0....1..1....3..0....2..2
..1..2....0..1....2..1....2..0....2..0....2..0....1..2....3..0....1..0....1..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 19 2013
STATUS
approved