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 A046316 Numbers of the form p*q*r where p,q,r are (not necessarily distinct) odd primes. 14
 27, 45, 63, 75, 99, 105, 117, 125, 147, 153, 165, 171, 175, 195, 207, 231, 245, 255, 261, 273, 275, 279, 285, 325, 333, 343, 345, 357, 363, 369, 385, 387, 399, 423, 425, 429, 435, 455, 465, 475, 477, 483, 507, 531, 539, 549, 555, 561, 575, 595, 603, 605 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..10000 PROG (Haskell) a046316 n = a046316_list !! (n-1) a046316_list = filter ((== 3) . a001222) [1, 3 ..] -- Reinhard Zumkeller, May 05 2015 (PARI) list(lim)=my(v=List(), pq); forprime(p=3, lim\9, forprime(q=3, min(lim\3\p, p), pq=p*q; forprime(r=3, lim\pq, listput(v, pq*r)))); Set(v) \\ Charles R Greathouse IV, Aug 23 2017 CROSSREFS Subsequence of A014612 and of A046340. Cf. A255646 (final digits). Sequence in context: A307373 A121614 A046340 * A046373 A228057 A113481 Adjacent sequences:  A046313 A046314 A046315 * A046317 A046318 A046319 KEYWORD nonn,easy AUTHOR Patrick De Geest, Jun 15 1998 EXTENSIONS Definition clarified by N. J. A. Sloane, Dec 19 2017 STATUS approved

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Last modified April 20 06:59 EDT 2021. Contains 343125 sequences. (Running on oeis4.)