OFFSET
1,1
COMMENTS
Column 4 of A240039
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 11*a(n-2) -49*a(n-4) +117*a(n-6) -177*a(n-8) +214*a(n-10) -239*a(n-12) +207*a(n-14) -135*a(n-16) +108*a(n-18) -82*a(n-20) +29*a(n-22) -3*a(n-24) for n>27
EXAMPLE
Some solutions for n=3
..2..1..2..1....1..2..2..1....2..1..2..1....1..2..1..2....1..2..1..2
..1..0..0..0....2..0..0..0....1..0..0..0....2..0..0..0....2..0..0..0
..1..2..1..2....2..0..0..0....1..2..1..0....2..1..2..1....2..1..2..0
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 31 2014
STATUS
approved