Exi-hyperduillion

The exi-hyperduillion (coined by SuperJedi224) is equal to H*(16,16) using the H* function.
It can be equivalently defined as follows:
Let H(x)=103x+3.
Let a0=16 and ax+1=H(H(...H(16)...))) with ax Hs.
Exi-Hyperduillion=a16.
==Sources==
Category:Up-arrow notation level