[seqfan] Re: seqs whose |differences| are 1,2,3,4,...

N. J. A. Sloane njas at research.att.com
Fri Mar 12 00:19:46 CET 2010


> NJAS's initial statement referred to "natural numbers"

To me the natural numbers are 1,2,3,4,5,...

The nonnegative integers are  0,1,2,3,4,5,...


 Best regards
 			 Neil




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