Starting with a list provided by Wolfgang Creyaufmüller, I have pushed all remaining sequences with starting values n between 250000 and 400000 (that had already reached 80 digits) to than 100 digits or more (or termination). The results can be found in table A (starting values between 250000 and 300000) and table B (starting values between 300000 and 350000) and table C (starting values between 350000 and 400000).
I am currently working my way through the remaining sequences with starting values between 400000 and 450000; you can see the current status in the fourth table
Last update: 27 July 2008