data/snuggletex/135.mml
<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>S</mi><mfenced close=")" open="("><mi>n</mi><mi>m</mi></mfenced><mo>=</mo><mfrac><mn>1</mn><mrow><mi>m</mi><mo>!</mo></mrow></mfrac><msubsup><mo>∑</mo><mrow><mi>k</mi><mo>=</mo><mn>0</mn></mrow><mrow><mi>n</mi><mo>-</mo><mn>1</mn></mrow></msubsup><mfenced close="⟩" open="⟨"><mfrac><mi>n</mi><mi>k</mi></mfrac></mfenced><mfrac><mi>k</mi><mrow><mi>n</mi><mo>-</mo><mi>m</mi></mrow></mfrac></math>