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Search: id:A073065
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| A073065 |
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a(n) = prime(n) * prime(prime(n)). |
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+0
2
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| 6, 15, 55, 119, 341, 533, 1003, 1273, 1909, 3161, 3937, 5809, 7339, 8213, 9917, 12773, 16343, 17263, 22177, 25063, 26791, 31679, 35773, 41029, 49373, 55247, 57989, 62809, 65291, 69721, 90043, 96809, 105901, 110783, 127991, 132427
(list; graph; listen)
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OFFSET
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0,1
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EXAMPLE
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Prime numbers are 2,3,5,7,11,13,17,... 2nd prime is 3, 3rd prime is 5, and the 5th prime is 11, so we get 1*3=6, 3*5=15, 5*11=55...
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CROSSREFS
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Cf. A000040, A073136.
Sequence in context: A082009 A122365 A119132 this_sequence A093042 A067665 A012595
Adjacent sequences: A073062 A073063 A073064 this_sequence A073066 A073067 A073068
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KEYWORD
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easy,nonn
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AUTHOR
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Y. Kelly Itakura (yitkr(AT)mta.ca), Aug 22 2002
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