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Search: id:A077329
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| A077329 |
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Smallest number beginning with 4 and having exactly n distinct prime divisors. |
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+0
9
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| 4, 40, 42, 420, 4290, 43890, 4001970, 40029990, 406816410, 40026056070, 401120980260, 40013061952710, 405332750552730, 40111962162442170, 4000228915204892370, 40909794684132183810, 4000669166940700163910
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OFFSET
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1,1
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EXAMPLE
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a(1) = 4, a(3) = 42.
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CROSSREFS
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Cf. A077326, A077327, A077328, A077330, A077331, A077332, A077333, A077334.
Cf. A106411-A106419, A106421-A106429.
Sequence in context: A080271 A104292 A131535 this_sequence A061473 A091104 A069539
Adjacent sequences: A077326 A077327 A077328 this_sequence A077330 A077331 A077332
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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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