[seqfan] Re: Empirical relation for A180169: Sigma(A180162(n)), where A180162(n) is the smallest N such that sigma(N) is an nth power, or 0 if no such N can be found

Simon Plouffe simon.plouffe at gmail.com
Fri Feb 25 16:59:32 CET 2011


  for A180169, I have this
generating function :


It has a score of 8.34 and it matches all the
terms in the sequence.

I checked the series and the 468'th term and they do match.

  I would say that this generating functions has good chances
to be the good one.

  My I add it to the sequence formulas ?

Best Regards,

Simon Plouffe

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