perplexus.info :: Sequences : p(p(x))

p(p(x)) (Posted on 2005-06-11)

3, 5, 11, 17, 31, 41, 59, 67, ?

See The Solution Submitted by Dustin

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Comment 8 of 8 |

p(x)=xth prime

p(p(1))=p(2)=3

p(p(2))=p(3)=5

p(p(3))=p(5)=11

p(p(4))=p(7)=17

p(p(5))=p(11)=31

p(p(6))=p(13)=41

p(p(7))=p(17)=59

p(p(8))=p(19)=67

Therefore, the next number is p(p(9))=p(23)=83.

Posted by Math Man on 2011-07-16 22:25:47

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