OFFSET
1,2
COMMENTS
Column 3 of A231031
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 12*a(n-1) +24*a(n-2) -198*a(n-3) +143*a(n-4) -39*a(n-5) -1072*a(n-6) +15046*a(n-7) -50039*a(n-8) -76233*a(n-9) +310401*a(n-10) -79074*a(n-11) -282050*a(n-12) +99013*a(n-13) +127303*a(n-14) -86657*a(n-15) +1974*a(n-16) +55618*a(n-17) -23205*a(n-18) -15363*a(n-19) +9601*a(n-20) -2560*a(n-21) -2599*a(n-22) +1807*a(n-23) +98*a(n-24) -123*a(n-25) +124*a(n-26) -a(n-27) -14*a(n-28)
EXAMPLE
Some solutions for n=3
..0..1..0....0..1..0....0..1..0....0..1..0....0..1..0....0..1..2....0..2..0
..2..1..2....2..2..2....2..0..2....2..2..1....2..0..2....2..0..2....1..1..0
..1..0..1....0..1..0....0..1..0....1..0..2....1..0..1....0..1..0....0..2..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 03 2013
STATUS
approved