[seqfan] A127697: correct list(?)

zak seidov zakseidov at yahoo.com
Thu Jul 1 14:06:35 CEST 2010


%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




      


More information about the SeqFan mailing list