Heptacthulhum super regiment

The hepeacthulhum super regiment is a series of numbers from E100#{5}#100 to E100#{6}#(E100#{6}#(E100#{6}#(E100#{6}#(E100#{6}#100)))) defined using Extended Cascading-E Notation (i.e. beginning from heptacthulhum and up to heptacthularxi-heptacthularxi-heptacthularxi-heptacthularxi-heptacthularxihect). The numbers were coined by Sbiis Saibian.