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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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8
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7, 72, 70, 714, 7140, 71610, 746130, 70136220, 703600590, 70015935990, 700288518930, 7420738134810, 701098433345310, 70007243563797540, 757887406446280110, 70025936403159126390, 7001749954335151685670, 700007496840185797172910
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| a(3) = 70 = 2*5*7.
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CROSSREFS
| Cf. A077326, A077327, A077328, A077329, A077330, A077331, A077333, A077334.
Cf. A106411-A106419, A106421-A106429.
Sequence in context: A022503 A063861 A093632 * A005413 A203473 A197951
Adjacent sequences: A077329 A077330 A077331 * A077333 A077334 A077335
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KEYWORD
| base,nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 04 2002
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EXTENSIONS
| 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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