User blog comment:Bubby3/Dropping Hydra notation/@comment-80.98.179.160-20171223210113/@comment-74.215.209.10-20171225193023

This function is as strong as Dropper array notatio (a part of Strong array notation), or R function, when it is defined, and corresponds to the strength of both in the FGH.

The EFGH is discontinous and has gaps at limit ordinals, so it is nowhere in the EFGH. To remove the gaps in the EFGH, change the limit rule to simply H_a(n) = H_a[n](n). If we do that, it will catch up with the FGH at w^w and all multiples of it, so it will correspond to the same ordinal.