Electronic spectra and single rotational level fluorescence lifetimes of jet-cooled H<sub>2</sub>CO: The Ã<sup>1</sup>A<sub>2</sub> ← X̃<sup>1</sup>A<sub>1</sub> 2<sub>0</sub><sup>1</sup>6<sub>0</sub><sup>1</sup>, 2<sub>0</sub><sup>1</sup>4<sub>0</sub><sup>3</sup>, and 2<sub>0</sub><sup>1</sup>4<sub>0</sub><sup>1</sup>6<sub>0</sub><sup>1</sup> - Fingerprint