The Racah -Coefficients are written
(1) |
(2) |
(3) |
(4) |
(5) |
See also Clebsch-Gordan Coefficient, Racah W-Coefficient, Wigner 3j-Symbol, Wigner 6j-Symbol, Wigner 9j-Symbol
References
Sobel'man, I. I. ``Angular Momenta.'' Ch. 4 in Atomic Spectra and Radiative Transitions, 2nd ed.
Berlin: Springer-Verlag, 1992.