User blog comment:ArtismScrub/A new way to extend the -illions?/@comment-25337554-20171001024845

Further obvious extension:

x-illionduthet=LL^[LL^2(x)](x)

x-illiontrethet=LL[LL^3(x)](x)

x-illiontetrethet=LL[LL^4(x)](x)

...