OFFSET
1,2
FORMULA
For n>=2: a(n) = product j=0...n-2 (4^n - 4^j)^2 / (4^(n-1)- 4^j).
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Yuval Dekel (dekelyuval(AT)hotmail.com), Jul 31 2003
EXTENSIONS
More terms from David Wasserman, Jan 31 2005
STATUS
approved