1,3

Here sigma(n)=the number of divisors of n and the binary order of n: log_2(n)rounder up to next intejer.

a(n)=A029837(n)^sigma(n).

a(1)=0^1=0, a(2)=1^3=1, a(3)=2^4=16.

Cf. A000005, A029837.

Sequence in context: A007787 A067470 A133111 this_sequence A004017 A167471 A153115

Adjacent sequences: A163396 A163397 A163398 this_sequence A163400 A163401 A163402

nonn

Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jul 26 2009