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Search: id:A077332
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| A077332 |
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Smallest number beginning with 7 and having exactly n distinct prime divisors. |
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+0
9
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| 7, 72, 70, 714, 7140, 71610, 746130, 70136220, 703600590, 70015935990, 700288518930, 7420738134810, 701098433345310, 70007243563797540, 757887406446280110, 70025936403159126390, 7001749954335151685670, 700007496840185797172910
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OFFSET
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1,1
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EXAMPLE
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a(3) = 70 = 2*5*7.
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CROSSREFS
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Cf. A077326, A077327, A077328, A077329, A077330, A077331, A077333, A077334.
Cf. A106411-A106419, A106421-A106429.
Sequence in context: A022503 A063861 A093632 this_sequence A005413 A137730 A157920
Adjacent sequences: A077329 A077330 A077331 this_sequence A077333 A077334 A077335
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KEYWORD
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base,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 04 2002
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EXTENSIONS
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a(5)-a(10) from Ray Chandler (rayjchandler(AT)sbcglobal.net), Apr 17 2005
More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), May 02 2005
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