Number of unbordered full words of length 
with 
holes over a 
-letter alphabet
Number of simply bordered partial words of length with holes over a -letter alphabet
Number of bordered partial words of length with holes over a -letter alphabet
Number of non-simply bordered partial words of length with holes over a -letter alphabet
Acknowledgement:
This material is based upon work supported by the National Science Foundation under Grant No.
DMS-0452020 and DMS-0754154.
The Department of Defense is also gratefully acknowledged.
Disclaimer:
Any opinions, findings, and conclusions or recommendations expressed in this material are those of
the authors and do not necessarily reflect the views of the National Science Foundation.
Implementations and web pages by Jonathan T. Britton and Yuan Kong.
