Thank you. Doron Zeilberger is an original; do not miss a chance to hear him speak. I can access though my university, but I'm limited to 100 pages per downloa

Thank you. Doron Zeilberger is an original; do not miss a chance to hear him speak. I can access though my university, but I'm limited to 100 pages per download, requiring 11 logins. Here, I just needed Acrobat to crop for an iPad, and to remove the four instances of "This page intentionally left blank".