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Search: id:A124058
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| A124058 |
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Smallest of the first occurrence of n consecutive integers with all different prime signatures. |
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+0
2
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| 2, 3, 4, 6, 8, 23, 24, 1804, 1968, 8375, 53750, 243864, 639324, 41381620, 102621343, 7802708736, 7802708736
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Essentially the same as A083790. - T. D. Noe, Nov 10 2006
a(18) > 10^11. [From Donovan Johnson (donovan.johnson(AT)yahoo.com), Oct 24 2009]
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LINKS
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Eric Weisstein's World of Mathematics, Description of prime signature
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EXAMPLE
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a(6)= 23 because it begins the first occurrence of 6 consecutive integers that have all different prime signatures ({1}, {1,3}, {2}, {1,1}, {3}, {1,2} respectively for 23 through 28).
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CROSSREFS
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Cf. A034173, A025487, A083790, A083788.
Sequence in context: A084074 A144722 A105808 this_sequence A118080 A136561 A112868
Adjacent sequences: A124055 A124056 A124057 this_sequence A124059 A124060 A124061
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KEYWORD
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nonn
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AUTHOR
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Joe McCauley (mccauleyj(AT)insightbb.com), Nov 03 2006
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EXTENSIONS
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a(12)-a(15) added from A083790, Nov 10 2006
a(16)-a(17) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Oct 24 2009
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