with the prime factors of ${n \choose k}$ (页面存档备份,存于互联网档案馆), The art of counting: Selected writings, Math. Comp. 28 (1974), 647--649 ( MR49 #2501; Zentralblatt
1990: 88-9. ISBN 9780671705923. 含有內容需登入查看的頁面 (link) 13 Sextillion & Counting: The Long & Winding Road to the Most Frequently Manufactured Human Artifact