OFFSET
1,1
COMMENTS
Column 4 of A223449
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 24*a(n-1) -154*a(n-2) -56*a(n-3) +2992*a(n-4) -6256*a(n-5) -4320*a(n-6) +19040*a(n-7) -6016*a(n-8) -12928*a(n-9) +9600*a(n-10) -1792*a(n-11) for n>12
EXAMPLE
Some solutions for n=3
.10..2.10..2....3..5..3..1...10..2..0..2...14.10..2..9...13.10..2.10
.13.10..2.10....5..3..1..0...13.10..2.10...10.14.10..2...10.13.10.13
.10..2..9..2....3..1..3..1...10..2.10..2...13.10.14.10...14.10..2.10
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 20 2013
STATUS
approved