Re: number sequence
- From: Anon <spamhole@xxxxxxxxxxxxxxxxx>
- Date: Wed, 31 Aug 2005 05:27:10 GMT
On 30 Aug 2005 16:32:04 -0700, "Russ" <rwpatterson@xxxxxxx> wrote:
>Hi:
>
>How should I go about trying to determine the equation that results in
>a number sequence like this:
>
>2, 6, 22, 86, 342...
>
>I see the difference between each term is a power of 2 but am stuck on
>how to determine equation. e.g. difference between 86 and 342 is 2^8.
>
>thanks,
>russ
As a supplement to the information previously posted, you should also
be aware of this valuable resource:
On-Line Encyclopedia of Integer Sequences
http://www.research.att.com/~njas/sequences/Seis.html
A search for your integer sequence returned (among others) A047849,
with formulas a(n) =(4^n+2)/3 =4a(n-1)-2 (and others)
HTH
.
- References:
- number sequence
- From: Russ
- number sequence
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