Formula_1954

\[x_{a_{1} \ldots a_{n}}^{t_{1} \ldots t_{n}}=\sigma_{t_{1}}\left(a_{1}^{*} \Theta_{t_{1}}^{t_{2}}\left(a_{2}^{*} \ldots \Theta_{t_{n-1}}^{t_{n}}\left(a_{n}^{*} a_{n}\right) \ldots a_{2}\right) a_{1}\right)\]