Where is the Nyquist frequency in an FFT spectrum?
You clearly haven't digested the information from the other answers I gave you.  With an odd number of points, the Nyquist frequency lies cleanly between two bins and does not occur at a bin.
For conceptual purposes, an odd number of points let you set zero at the center flanked by the same number of points on each side.  Likewise, the DFT can be centered at DC flanked by the same number of bins on each side, positive one way, negative the other.
Zero padding either domain means zero padding at the extremes.
More reading, more math, more popcorn:
Using fourier coefficients to reconstruct data in matlab