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A123073 Number of ordered triples of primes (p,q,r) such that pqr = n-th 3-almost prime A014612(n). 2

%I #4 Mar 30 2012 17:22:43

%S 1,3,3,3,1,3,6,6,3,3,3,3,3,6,3,6,3,3,6,3,3,3,6,6,6,6,3,3,3,1,6,6,3,3,

%T 3,6,3,6,6,3,3,6,3,6,6,3,6,6,3,3,6,6,6,3,6,3,3,3,6,6,6,3,6,3,6,3,3,6,

%U 3,6,6,6,3,6,3,6,6,3,3,3,3,1,6,6,3,6,3,6,3,6,6,6,3,3,6,6,3,6,6,3,6,3,3,6,3

%N Number of ordered triples of primes (p,q,r) such that pqr = n-th 3-almost prime A014612(n).

%C The nonzero subsequence of A123074.

%Y Cf. A123074, A014612.

%K nonn

%O 1,2

%A _N. J. A. Sloane_ and T. D. Noe, Sep 29 2006

%E More terms from _T. D. Noe_, Sep 29 2006

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)