1,2
Table of n, a(n) for n=1..3.
a(n) = (2^(2*A000668(n)-1)/16)-1 = (A139294(n)/16)-1.
Sequence in context: A069436 A217915 A263167 * A035884 A035596 A095843
Adjacent sequences: A139300 A139301 A139302 * A139304 A139305 A139306
bref,nonn
Omar E. Pol, Apr 13 2008
approved
