Letter/number sequence (Lenny Conundrum)

[fuzzyhuzzy34]

Can someone tell me what comes next in this sequence??
S6
A10
R17
E21
H26
R30

I need the answer as soon as possible! Thanks to anyone who can help!

 

[stapel]

Please don't post the Neopet's "Lenny Conundrum" contest puzzle here. This isn't a math exercise, and we aren't Neopians. Go to a Neopets site for Neopets help with Neopets contests that require Neopets information. The math tutors can't win you your prizes for you, okay?

Eliz.