Extended Facthype Notation

Extended Facthype Notation (EFHN) [NOT3][1]

• AKA Extended Factorial Hyperoperation Notation

If you didn't read the definition for normal FHN, then you should, if you did you can continue reading. You probably remember that I left at n! // m

yea actually i havent come up with anything yet take this 21st century humour [M4] video as compensation