Dear Math Fun, This paper J. D. H. Dickson, <a href=" http://plms.oxfordjournals.org/content/s1-10/1/120.extract">Discussion of two double series arising from the number of terms in determinants of certain forms</a>, Proc. London Math. Soc., 10 (1879), 120-122. has some nice sequences in it. I HAVE a photocopy, which I made myself about 45 years ago, but I was hoping that by now it would be freely available on the web, so I could put a link to a free copy into sequence https://oeis.org/A047920 and many others that the paper contains. Fat chance - Oxford Univ. Press will rent it to me for one day for $39.00. No doubt I am naive, but I find this very annoying. It was published by the London Mathematical Society in 1879. Best regards Neil Neil J. A. Sloane, President, OEIS Foundation. 11 South Adelaide Avenue, Highland Park, NJ 08904, USA. Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ. Phone: 732 828 6098; home page: http://NeilSloane.com Email: njasloane@gmail.com