Smelting formula testing list [no alloy bonus]

[Wino97]

Hey,
Any one has the best formula for smelting already?
Is now more based on luck?
I will update my results, becouse i didn't find similar list.
There are my tests (ore:lime:result):
Iron smelting:

(1)1:21:?(2)1:21:?
(1)2:21:?(2)2:21:?
(1)3:21:?(2)3:21:?
(1)4:21:?(2)4:21:?
(1)5:20:1(2)5:20:1
(1)6:19:1(2)6:19:1
(1)7:18:1(2)7:18:1
(1)8:17:1(2)8:18:1
(1)9:16:1(2)9:16:1
(1)10:15:2(2)10:15:1
(1)13:12:1(2)13:12:2
(1)14:11:1(2)14:11:1
(1)15:10:2(2)15:10:1
(1)16:9:2(2)16:9:1
17:8:1
18:7:1
25:0:0

Silver smelting:

(1)9:16:2(2)9:16:1

[lachlaan]

I'm fairly certain the formula is the old one but reduced, and that alloying was meant to buff that but is broken or disabled for the time being until a better formula is found to prevent abuse. It used to be Ore * (2 + Lime) , and i am almost certain it is now Ore * (2 + Lime)/ sqrt(2)