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A046309 Numbers that are divisible by at least 8 primes (counted with multiplicity). +0
2
256, 384, 512, 576, 640, 768, 864, 896, 960, 1024, 1152, 1280, 1296, 1344, 1408, 1440, 1536, 1600, 1664, 1728, 1792, 1920, 1944, 2016, 2048, 2112, 2160, 2176, 2240, 2304, 2400, 2432, 2496, 2560, 2592, 2688, 2816, 2880, 2916, 2944, 3024, 3072, 3136 (list; graph; listen)
OFFSET

1,1

FORMULA

Product p_i^e_i with Sum e_i >= 8.

CROSSREFS

Cf. A046310.

Sequence in context: A093861 A044872 A044979 this_sequence A036332 A114987 A046310

Adjacent sequences: A046306 A046307 A046308 this_sequence A046310 A046311 A046312

KEYWORD

nonn

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 15 1998.

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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