  We show that the perturbative part of the partition function in the
Chern-Simons theory on a 3-sphere as well as the central charge and expectation
value of the unknotted Wilson loop in the adjoint representation can be
expressed in terms of the universal Vogel's parameters $\alpha, \beta, \gamma.$
The derivation is based on certain generalisations of the Freudenthal-de Vries
strange formula.
