[seqfan] Re: Sequence of the Day for April Fools'

Robert Munafo mrob27 at gmail.com
Thu Mar 15 20:49:37 CET 2012

A virtually identical "sequence" appears on page 31 of Sloane's original
book [1]. An image is here:
mrob.com/pub/math/images/HIS-reflect-puzzle.jpgand the accompanying
text spoiled the puzzle by telling the answer.

In my opinion, this makes it not nearly foolish enough for an April Fool's

I counter with my own proposal, written in the original OEIS syntax for
nostalgic effect (it was found in a lost notebook of Dr. Matrix from 1979):

 %S 3,1,4,1,5,9,2,6
 %N Decimal expansion of the limit of the iteration: x -> sqrt(sqrt(exp
 %e Starting with an initial value x=2, the first iteration of the function
is sqrt(sqrt(e^6/3))=3.4053472... Using this value for x, the next
iteration is sqrt(sqrt(e^6/4.4053472...))=3.0934755... Continue
 %K cons,nonn,more
 %O 1,1
 %A Irving J. Matrix

On Wed, Mar 14, 2012 at 20:34, Alonso Del Arte <alonso.delarte at gmail.com>wrote:

> What y'all think of this draft for the Sequence of the Day on April 1?
> http://oeis.org/wiki/Template:Sequence_of_the_Day_for_April_1
> Al

[1] Sloane, Neil James Alexander, 1939-
  A handbook of integer sequences [by] N. J. A. Sloane
  Bibliography: p. 187-197.
  1. Sequences (Mathematics)  2. Numbers, Natural.
  ISBN: 012648550X
QA292 .S58   [LC]

  Robert Munafo  --  mrob.com
  Follow me at: gplus.to/mrob - fb.com/mrob27 - twitter.com/mrob_27 -
mrob27.wordpress.com - youtube.com/user/mrob143 - rilybot.blogspot.com

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