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Search: id:A155911
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| A155911 |
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Composite numbers such that final digit = number of prime factors. |
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+0
1
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| 22, 24, 54, 62, 63, 82, 84, 96, 104, 122, 142, 153, 184, 202, 204, 216, 234, 262, 273, 294, 302, 333, 336, 343, 344, 362, 363, 364, 382, 405, 414, 416, 422, 423, 424, 444, 482, 483, 484, 486, 502, 542, 562, 564, 584, 603, 622, 644, 662, 663, 664, 675, 714
(list; graph; listen)
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OFFSET
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1,1
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MAPLE
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A010879 := proc(n) n mod 10 ; end: A001222 := proc(n) numtheory[bigomega](n); end: for n from 4 to 2000 do if not isprime(n) then if A010879(n) = A001222(n) then printf("%d, ", n) ; fi; fi; od: [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 31 2009]
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CROSSREFS
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Cf. A002808.
Sequence in context: A067189 A030593 A138603 this_sequence A061411 A053779 A034304
Adjacent sequences: A155908 A155909 A155910 this_sequence A155912 A155913 A155914
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KEYWORD
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nonn,base
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AUTHOR
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Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 30 2009
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EXTENSIONS
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Extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 31 2009
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