11 Mar
2012
11 Mar
'12
5:11 p.m.
From: Neil Sloane <njasloane@gmail.com> To: math-fun <math-fun@mailman.xmission.com> Sent: Sunday, March 11, 2012 3:50 PM Subject: Re: [math-fun] RE : Hitting 5
The convention in the OEIS is to use -1 in cases when a term would be infinite or undefined. Neil
But can't -1 be a legitimate element of an integer sequence? -- Gene