User blog comment:Eners49/New Notation Idea? (Attempt 2)/@comment-31966679-20180709175013/@comment-31966679-20180712041322

{a, 2 | b} would have a growth rate of omega ^ omega + omega.

{a, 3 | b} would have  a growth rate of omega ^ omega + omega * 2

{a, b | c} would have a growth rate of omega ^ omega + omega ^ 2

So your function now would have a growth rate of \(f_{\omega ^ {\omega} + omega ^ {2}}(n)\)