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Re:42 by scythe on Sunday May 26, 2013 @07:02PM (#5772749)
That sequence is called "Sylvester's sequence":

http://oeis.org/A000058

The Online Encyclopedia of Integer Sequences is one of the coolest things on the net.

Re:42 by geraldalewis on Sunday May 26, 2013 @07:14PM (#5772773)
Thanks! Interesting that mine's off by one...