There is a new lookup page under development - please try http://www.research.att.com/~njas/nsequences/index.html This will eventually (maybe quite soon) replace the existing lookup page http://www.research.att.com/~njas/sequences/index.html Click the Advanced Search button to get instructions: this points to the URL http://www.research.att.com/~njas/nsequences/index2.html Note that you can now search for multiple things like 1,2,3,4,5 "partial sums" author:njas keyword:nice It is also very fast. Please report any problems to njas. Several things still need to be fixed (the Demo pages and the Index files, in particular) Thanks to Russ Cox, who spent countless hours writing the new programs. Some of the ideas were contributed by Alex Healy, and David Applegate played a key role in getting them running on the local machine. Neil