(FORMULA:) a(n)=n-1 for n>0. [From Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Sep 27 2009] (PROGRAM:) (Other) sage: [log(e^n)for n in xrange(0, 78)] # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 03 2009] Two more for "profound skepticism".