Re: [math-fun] Ulam(1,2)

For what it's worth, a graph of the first million terms of Ulam[n]- 13.5 n can be seen at http://www.wolframscience.com/preview/nks_pages/?NKS0908.gif The method for coming up with 13.5 was to divide the millionth term by a million. As can be seen, the Ulam sequence doesn't have a predictable pattern, so far. What is the 5 millionth term? I am willion to predict that Ulam[5000000]/5000000 will not equal 13.5 or 21.6. It'll be some other number. --Ed Pegg Jr.