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Search: id:A049035
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| A049035 |
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Number of pairs of twin primes whose smaller element is <= 10^n-th prime. |
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+0
1
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OFFSET
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1,1
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LINKS
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Index entries for sequences related to numbers of primes in various ranges
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EXAMPLE
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a(1)=5 since the 10th prime is 29 and the first 5 twin primes are {3,5}, {5,7}, {11,13}, {17,19} and {29,31}.
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CROSSREFS
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Sequence in context: A112242 A035341 A137383 this_sequence A047897 A121144 A096684
Adjacent sequences: A049032 A049033 A049034 this_sequence A049036 A049037 A049038
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KEYWORD
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nonn
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AUTHOR
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Dennis S. Kluk (mathemagician(AT)ameritech.net)
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EXTENSIONS
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More terms from Labos E. (labos(AT)ana.sote.hu), Oct 13 2000; Jud McCranie (j.mccranie(AT)comcast.net), Dec 30 2000
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