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A077334
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Smallest number beginning with 9 and having exactly n distinct prime divisors.
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26
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9, 91, 90, 910, 9030, 90090, 903210, 9699690, 900029130, 9146807670, 901741380540, 9426343036110, 900781858106130, 90004386781078770, 914836017997511610, 90100977291211496610, 9000008798605567472730, 900002983747159323401370
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| a(2) = 91 = 13*7.
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CROSSREFS
| Cf. A077326, A077327, A077328, A077329, A077330, A077331, A077332, A077333.
Cf. A106411-A106419, A106421-A106429.
Sequence in context: A157558 A157584 A128384 * A020243 A014992 A015585
Adjacent sequences: A077331 A077332 A077333 * A077335 A077336 A077337
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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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