User blog comment:BlauesWasser/Pran - Powerful Repeating Array Notation/@comment-80.98.179.160-20180307125618/@comment-4418057-20180308161249

So if I have this right, the number of up-arrow layers is n^^^....^^^n with n arrows? I don't have time to use MathJax right now, but I think that makes it an f[w+1](f[w](n)) level function