User blog comment:Primussupremus/The master number/@comment-45.26.79.90-20170323140750/@comment-28606698-20170323174803

He means to construct something like Bowers's linear array. Look, your number is f^n(n), where f(n)=n\uparrow^n n. You can define for example n{1,0}b=f^b(n). Now the separator between n and b is linear array wiyh two entries.