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A190892
Numbers that can be written as a*b = c*d*e, where a, b, c, d, and e are distinct composite numbers.
2
192, 216, 240, 288, 320, 336, 360, 384, 432, 448, 480, 504, 528, 540, 560, 576, 600, 624, 640, 648, 672, 704, 720, 756, 768, 792, 800, 810, 816, 832, 840, 864, 880, 896, 900, 912, 936, 960, 972, 1000, 1008, 1024, 1040, 1056, 1080, 1088, 1104, 1120, 1134
OFFSET
1,1
COMMENTS
Similar to A175340, but without the requirement that the composite numbers be consecutive. In this case, the k in A175340 can be taken to be 2.
Almost all numbers are in this sequence. Its complement has density O(n (log log n)^4/log n). - Charles R Greathouse IV, May 23 2011
EXAMPLE
192 = 12*16 = 4*6*8.
CROSSREFS
Cf. A162247 (all factorizations of numbers), A175340.
A339245 is a subsequence.
Sequence in context: A206336 A206335 A289219 * A039667 A273890 A344860
KEYWORD
nonn
AUTHOR
T. D. Noe, May 23 2011
STATUS
approved