[seqfan] Re: A139414

[Harry J. Smith]

You totally lost me on that one. Are you just trying to bug me. The offset
for A005846 should be zero.

-Harry

> -----Original Message-----
> From: Maximilian Hasler [mailto:maximilian.hasler at gmail.com]
> Sent: Thursday, January 29, 2009 6:44 PM
> To: Harry J. Smith
> Subject: Re: [seqfan] Re: A139414
> 
> > A005846 formatted as a simple table:
> > n  a(n)
> > 1  41
> > 2  43
> > 3  47
> ...
> > And know a(n) = n^2 + n + 41.
> 
> no, this equality does not hold.
> For n=1,...,40 one has a(n) = n(n-1)+41
> but this is just a kind of coincidence.
> For n=41,42, one has a(n) = n(n+1) + 41,
> but then again, for n=43, the formula changes.
> 
> Maximilian