[seqfan] Re: Is 0001 a 4-digit base 10 number ?

[franktaw at netscape.net]

It's not the standard interpretation.

There's nothing wrong with the sequence being defined that way, but 
either the definition should be modified (e.g., add "with leading zeros 
allowed"), or a similar comment should be added.

Franklin T. Adams-Watters

-----Original Message-----
From: Giovanni Resta <giovanni.resta at iit.cnr.it>

My question arises from the description of A126364
( http://oeis.org/A126364 ) :

Number of base 10 n-digit numbers with adjacent digits differing by one
or less. 		
1, 10, 28, 80, 230, 664,...

It seems clear, from a(2)=28, that the author counts 00 and 01 among
the 2-digit base 10 numbers.

It seems to me a little unusual, but I may be wrong.

What's your opinion ?

giovanni



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