[seqfan] Re: seq needed of (0,+-1) matrices

N. J. A. Sloane njas at research.att.com
Thu Jan 19 21:47:23 CET 2012


uhoh - we have two different versions!

>Date: Thu, 19 Jan 2012 11:53:06 -0800 (PST)
>From: Ron Hardin <rhhardin at att.net>
>Subject: [seqfan] Re: seq needed of (0,+-1) matrices

>I get 1 3 27 293 3605 52327 899311
>unless I've misunderstood the formula
>(does "... (*)" mean anything?  I'm worried because it suggests a continuation)

> rhhardin at mindspring.com
>rhhardin at att.net (either)

>> From: Max Alekseyev <maxale at gmail.com>
>> Sent: Wed, January 18, 2012 4:03:09 PM
>> Subject: [seqfan] Re: seq needed of (0,+-1) matrices
>> 
>> The first 6 terms of the requested sequence are:
>> 
>> 1, 3, 27, 125, 461,  1583
>> 
>> I may also get a(7) soon.
>> 
>> Regards,
>> Max
>> 

No, the (*) doesn't mean anything, it was a label
in case I wanted to refer to the condition later.

It looks like we will end up with two different sequences
once this has been straightened out.

Neil




More information about the SeqFan mailing list