Corrigendum to "Universal factorization of 3n-j (j>2) symbols..." [J.   Phys. A: Math. Gen. 37 (2004) 3259]
  Ten values of 12-j symbols of the first kind published earlier are challenged by values calculated with an independent Python program. The program first implements a narrow class of square roots of rational numbers, utilizing Python's unlimited representation of big integers. Wigner's 3jm symbols, 6-j, 9-j, 12-j and 15-j symbols are then calculated by their familiar representations as sums over products of these. 
Richard J. Mathar
math-ph math.MP quant-ph