0,2
Hankel transform of A166076.
a(n)=2^A000326(n).
Sequence in context: A093584 A117259 A068183 * A053853 A018241 A012599
Adjacent sequences: A166074 A166075 A166076 * A166078 A166079 A166080
easy,nonn
Paul Barry (pbarry(AT)wit.ie), Oct 06 2009