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Number of divisors of A006558(n).
1

%I #16 Nov 28 2018 03:39:49

%S 1,2,4,6,8,8,8,24,24,24

%N Number of divisors of A006558(n).

%C a(n) is divisible by 3 for n > 7.

%C More generally, a(n) is divisible by m for all n >= 2^m. - _Max Alekseyev_, Aug 05 2015

%e phi(33) = phi(34) = phi(35) = 4, so a(3)=4.

%Y Cf. A006558.

%K nonn,more,hard

%O 1,2

%A _Jud McCranie_, Jan 14 2006

%E a(10) from _Jud McCranie_, Nov 27 2018