A factorial would be multiplication not addition. 3! is 321 not 3+2+1.
The summation version doesn’t have such a unified name, there are various universally unpopular names floating around with little consensus.
Incidentally to find such a sum easily use (n^2 + n)/2
Had no idea, thanks, hehe, haven’t done a lot of non-applied math in years and years. Thanks!
He has said before that fiends are not distinguished between devils and demons in this world, they’re all just Mara together.
Ah. Got it. Well. Either way, they’d be fucked.
Adding the plus 1 gives you 1 over the average.
1 under, actually. You can’t roll a zero on a d8, after all.
… Wow, this is still going on. 
