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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
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, 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, 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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The nonzero subsequence of A123074.

LINKS

Table of n, a(n) for n=1..105.

CROSSREFS

Cf. A123074, A014612.

Sequence in context: A153401 A181520 A256736 * A059289 A201277 A163644

Adjacent sequences:  A123070 A123071 A123072 * A123074 A123075 A123076

KEYWORD

nonn

AUTHOR

N. J. A. Sloane and T. D. Noe, Sep 29 2006

EXTENSIONS

More terms from T. D. Noe, Sep 29 2006

STATUS

approved

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Last modified April 5 11:59 EDT 2020. Contains 333241 sequences. (Running on oeis4.)