Question about A075849

Brian L. Galebach briang at
Thu Oct 17 16:22:58 CEST 2002

Looks like an error to me.

-----Original Message-----
From: Mark Hudson [mailto:mrmarkhudson at]
Sent: Thursday, October 17, 2002 10:16 AM
To: seqfan at
Subject: Question about A075849


I've been lurking on this list for a while now for fear of looking stupid,
but I have a query about A075849:

%I A075849
%S A075849 2,1,0,0,1,0,1,0,1,2,1,0,1,2,1,0
%N A075849 Distance to closest prime.
%e A075849 a(34)=3
%K A075849 nonn,more,new
%O A075849 0,1

I have been working on the basis that a(0)=2 because the nearest prime to 0
is 2 and so is 2 away.
Likewise, a(prime)=0.

So... why is the 14th digit in the above sequence, which should be a(13),
not equal to 0? And shouldn't a(15)=2?


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