ne'oi VUhU3 experimental cmavo

unary operator: primorial a#

The product of the first pi(a) prime numbers pi starting with p1 = 2, where pi(a) is the (not-greater-than-)prime-counting function. Not strictly monotonically increasing unless a=pj for positive integers j.


In notes:

ne'o'o (exp!)
mekso quaternary operator – Pochhammer symbol: with/for input (X1, X, this word/function outputs \prodk = 0^X2 - 1 (X; by default, X4 = 1 unless explicitly defined otherwise.