0,1

By definition, every term is a power of a prime.

For all n >= 0, a(2n) = 2^m, m >= 1.

Cf. A139020, A139021.

Sequence in context: A101847 A117557 A137997 this_sequence A053683 A082085 A054971

Adjacent sequences: A139019 A139020 A139021 this_sequence A139023 A139024 A139025

more,nonn

Leroy Quet (qq-quet(AT)mindspring.com), Apr 06 2008