# Whats the code for this surfaceplot?

Does anybody know the code to plot the following picture:

Having trouble to come up with a good idea...

• What you can do to increase the quality of the question is to give any relevant information about the surface, equations, papers, etc., instead of just gimme_teh_codez – Sektor Apr 12 '17 at 7:23
• I'm voting to close this question as off-topic because "here is an image of what I want, please give me the code to generate it"-type of questions probably won't help future visitors. – Sascha Apr 12 '17 at 7:24

With[{c = 3, a = 1, n = 9, r = 1/3},