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Apr 13, 2017 at 12:19 history edited CommunityBot
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Oct 7, 2013 at 20:11 answer added Will Jagy timeline score: 0
Oct 3, 2013 at 22:15 answer added Will Jagy timeline score: 3
Oct 3, 2013 at 12:29 comment added Joseph O'Rourke So now we have a new sequence, $2, 4, 16, 1296, 9681819840000, \ldots$, but with little hope of extending it.
Oct 3, 2013 at 10:40 history edited Joseph O'Rourke CC BY-SA 3.0
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Oct 3, 2013 at 7:35 answer added Will Jagy timeline score: 3
Oct 3, 2013 at 0:21 comment added Joseph O'Rourke Interesting! The next number in the sequence is about the size of Will's number, but $P(1586874322944)=4$.
Oct 3, 2013 at 0:16 comment added Gerry Myerson There is one occurence of 2, 4, 16, 1296 at the Online Encyclopedia of Integer Sequences, but it's not related (oeis.org/A070283).
Oct 2, 2013 at 17:41 comment added The Masked Avenger Let r(n)=n/rad(n), which bumps the exponents of n down 1. Your p(n) satisfies p(n)=d(r(n)), the number of divisors of r(n). You might look to literature on iterates of d(n) to get a further sense of p. I would start a search using Guy's book on unsolved problems in number theory.
Oct 2, 2013 at 17:00 vote accept Joseph O'Rourke
Oct 2, 2013 at 17:00 history edited Joseph O'Rourke CC BY-SA 3.0
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Oct 2, 2013 at 0:12 answer added Will Jagy timeline score: 5
Oct 1, 2013 at 23:47 history asked Joseph O'Rourke CC BY-SA 3.0