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## Main Question or Discussion Point

Hi. I've just learned about enumerating the second-order susceptibility (rather blindly) by

3^3 * (3*2*1) * 2 = 324.

(tensor size * 3 frequency permutation * negative frequency)

I'm guessing that for the third-order susceptibility would similarly yeild

3^4 * (4*3*2*1) * 2 = 3888?

I couldn't find any book or reference that bothered to do this calculation, but I need to give a presentation about this by tomorrow. Is there anything wrong with my logic?

3^3 * (3*2*1) * 2 = 324.

(tensor size * 3 frequency permutation * negative frequency)

I'm guessing that for the third-order susceptibility would similarly yeild

3^4 * (4*3*2*1) * 2 = 3888?

I couldn't find any book or reference that bothered to do this calculation, but I need to give a presentation about this by tomorrow. Is there anything wrong with my logic?