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 A046316 Odd numbers divisible by exactly 3 primes (counted with multiplicity). 8
 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: A259504 A121614 A046340 * A046373 A228057 A113481 Adjacent sequences:  A046313 A046314 A046315 * A046317 A046318 A046319 KEYWORD nonn,easy AUTHOR Patrick De Geest, Jun 15 1998. STATUS approved

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