User blog comment:Luckyluxius/New Number Notation + new numbers!/@comment-43798125-20191118174006/@comment-43798125-20191119120812

Wouldn't it be more powerful to make the subscript into iteration of the superscript--e.g. lunate^1_2(a) = lunate^(lunate^1(a))(a)?

That would make it pentation-level