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A088076
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Smallest prime sandwiched between two numbers having exactly n prime divisors.
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1
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3, 11, 131, 1429, 77141, 3847271, 117048931, 22917541219, 1771365487891, 140734085123059, 14159733947566481
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| (Different from A088075 though initial three terms match). Sequence is inifinite.
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REFERENCES
| J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 131, p. 45, Ellipses, Paris 2008.
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EXAMPLE
| a(3) = 131, 130 = 2*5*13 and 132 = 2^2*3*11 both have three prime divisors. 131 is the smallest such prime.
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CROSSREFS
| Cf. A088075.
Sequence in context: A113848 A201611 A088075 * A072878 A112957 A057205
Adjacent sequences: A088073 A088074 A088075 * A088077 A088078 A088079
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KEYWORD
| more,nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 22 2003
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EXTENSIONS
| More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 08 2003
a(8) and a(9) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Jun 19 2008
a(10)-a(11) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Feb 18 2009
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