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From the Ališauakas‐Jucys triple summation expression, the Wigner 9j coefficients may be visualized as boundary values of a new generalized hypergeometric function ϕ(3)(αik ;βk,γm;wk) in three variables. Integral representations are given both for ϕ(3) in general and its boundary values as the 9j coefficients. The Radon structure is discussed. It is seen that ϕ(3) and the 9j coefficients in general do not belong to the class of hypergeometric functions whose Radon transforms are products of linear forms

Structure of Ališauskas-Jucys form of the 9j coefficients