Adam, those statistics about A001316 are very interesting. (Especially since I was recently looking at similar properties for a closely related sequence.) Could you add them to the entry for A001316? Or, since this might enlarge the entry too much, put them in a text file (or pdf file) similar to your math-fun posting, and upload it to the OEIS web site as a file to be attached to A001316? Thanks! Neil PS You would need to register first, but this is easy. Announcement, Nov 17 2010: New Version of OEIS! =============================================== The OEIS is now running on the web. There are two parts: the main OEIS page is oeis.org, which has all the sequence data, and a wiki, oeis.org/wiki, which has discussion pages. To contribute a new sequence or edit a sequence, you must first register at oeis.org/wiki - click Register, enter your real name (use John M. Smith, NOT john smith, NOT johnny33), enter your email address, and a brief bio. You will be sent an automatic email (from admin@oeis.org, I think), which you must answer to get your password. When you get the password, go to the main page, oeis.org, and login with the same user name and password. Neil Sloane President, OEIS Foundation Inc (see http://oeisf.org/).