LToolsA0i corresponds to the A0i function in LoopTools. The only difference is that the id should be entered as a string, e.g. "a0" instead of a0.
LToolsA0i
A0i
"a0"
a0
See ?LoopTools`A0i for further information regarding this LoopTools symbol.
?LoopTools`A0i
Overview.