Translated the low memory version of the Go entry but showed only the first 50 self numbers. The machine for running this task (a Xeon E3110+8GB memory) is showing its age as, 1) took over 6 minutes to complete the Go entry, 2) not even able to run the other two Go alternative entries and 3) needed over 47 minutes to reach 1e6 iterations here. Anyway I will try this on an i5 box later to see how it goes.