User blog comment:Alejandro Magno/My -illion is bigger!/@comment-4297047-20140923191653

sigh

Let H*(n,0) equal n, H*(n,m+1) equal HH*(n,m)(n), H*(a,b,…,c,1) equal H*(a,b,…,c), and H*(a,…,b,c,d) equal H*(a,…,b,H*(a,…b,c,d-1)).

Hyperterillion=H*(10,10,10,10).