User blog comment:Syst3ms/Breadth-Recursive Array Notation (BRAN)/@comment-25601061-20180424215049/@comment-35392788-20180425144536

Actually, it's adding 1 any entry other than the first one that helps massively. The first one doesn't matter as much because it doesn't change anything to how deep the recursion goes.

Also, I wonder what it would be like if 3-entry arrays translated to knuth up-arrow notation. Any idea ?