Monster HP formula?

Here's a table of the formulas for different level ranges (x is the level)
There was only one mob in your data that did not fit:
Mobid: 3150000
level: 31
HP: 990

Level Range	HP Formula
[1,3]	10+5x
[4,10]	-25+15x
[10,20]	-125 +25x
[20,25]	-225+30x
[26,29]	-1240+70x
[30,45]	-2100+100x
[45,50]	-3000+120x
[50,55]	-7000+200x
[55,60]	-12500+300x
[60,65]	-18500+400x
[65,70]	-25000+500x
[70,75]	-60000+1000x
[75,125]	-135000+2000x
[125,126]	-260000+3000x
[127,151]	-515000+5000x
[151,180]	-1270000+10000x
[180,?)	-3070000+20000x