Simplifying grasshopper scripts using series

I have quite a large script on grasshopper and I know I can heavily simplify it using series. Would anyone know how to get started? The geometry looks something like this: (71.6 KB)

Here is one way.
Edit: I made a small change (13.1 KB)

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Check this as well. (15.4 KB)

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Much simpler, Thank you:) (16.7 KB)

P.S. Simplified further without using Offset, symmetric around origin. (14.4 KB)