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A130331 Number of divisors of A123240(n). 0

%I #4 Mar 30 2012 18:40:03

%S 4,4,4,6,4,4,6,6,4,4,4,4,6,6,4,4,4,9,4,4,6,6,4,10,6,4,6,4,4,4,12,4,6,

%T 7,4,6,4,12,4,6,6,4,10,4,12,4,4,4,12,4,6,4,4,4,12,6,6,9,4,12,4,10,4,6,

%U 6,4,4,16,4,4,6,4,12,4,12,4,4,12,4,4,4,15,4,4,6,6,12,6,4,12,4,4,12,4,10,6,4

%N Number of divisors of A123240(n).

%C By definition, each term is in A001690. - _R. J. Mathar_, Jan 15 2008

%F a(n) = A000005(A123240(n)) . - _R. J. Mathar_, Jan 15 2008

%Y Cf. A000379, A123240.

%K easy,nonn

%O 1,1

%A _Giovanni Teofilatto_, Aug 07 2007

%E More terms from _R. J. Mathar_, Jan 15 2008

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Last modified March 28 10:31 EDT 2024. Contains 371240 sequences. (Running on oeis4.)