a/b + b/c + c/a = n (Extend A072716?)

[Jud McCranie]

At 04:10 PM 7/16/2003, all at abouthugo.de wrote:

>How far can A072716 now be extended without too much risk of missing
>an early term?

That's a big question.  As far as I know, it still isn't known if 22 is in 
the sequence or not.  I think it is fine to list more known terms in the 
comment, but I don't think it is a good idea to add terms to the main 
sequence if there may be some missing.