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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
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OFFSET
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1,1
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COMMENTS
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Different from A088075 though initial three terms match. Sequence is infinite.
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REFERENCES
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J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 131, p. 45, Ellipses, Paris 2008.
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LINKS
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EXAMPLE
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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
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KEYWORD
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more,nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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