[seqfan] Re: A127697: correct list(?)

[Ron Hardin]

I get
0 0 0 0 0 2 32 368 3984 44304 521606 6564318 88422296 1272704694 19521035238 318120059458


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



----- Original Message ----
> From: zak seidov <zakseidov at yahoo.com>
> To: seqfaneu <seqfan at seqfan.eu>
> Sent: Thu, July 1, 2010 8:06:35 AM
> Subject: [seqfan]  A127697: correct list(?)
> 
> 
%N A127697 Number of permutations of {1,2,...,n}
 where adjacent elements 
> differ in value by 3 or more.

%S A127697 
> 

0,0,0,0,0,2,32,368,3984,64904,947168

My calcs give: 
> 

0,0,0,0,0,2,32,368,3984,44304,521606,6564318

Anyone may wish to 
> check/extend these?
Any 
> fornula?

Thanks,
Zak




      
> 

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