Creating a curly Vine with Niagara?

I’m looking for some math. The approach for example, if I have an Armature Rig and each Bone rotates at a similar-ish “local” angle from the parent Bone the Bones will curl inward, but I’m having a hard time looking for the math to apply to each particle. The only math I have is like the Fibonacci Sequence which however only curls outward.

Like this …

Screenshot 2024-10-03 190221