1,2
Similar to powers of 2.
Cf. A161815
Sequence in context: A189111 A181217 A089887 * A160124 A080007 A006967
Adjacent sequences: A161813 A161814 A161815 * A161817 A161818 A161819
frac,nonn
Mats Granvik (mats.granvik(AT)abo.fi), Jun 20 2009