User blog comment:KthulhuHimself/The pointless and arbitrary function dustbin./@comment-25601061-20151026193835

Plex(n) = 0G(n)

Plax(n) = 0GG(n)

Ex(m,n) = 0G-m(n)

(for definitions see http://googology.wikia.com/wiki/User_blog:Alejandro_Magno/Ultimate_Googol )