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-16/105 Sqrt[\[Pi]] SphericalHarmonicY[4, 0, \[Theta], \[Phi]] + 4/21 Sqrt[\[Pi]/5] SphericalHarmonicY[2, 0, \[Theta], \[Phi]] + 4/15 Sqrt[\[Pi]] SphericalHarmonicY[0, 0, \[Theta], \[Phi]]