| #### D.15.8.5 LRcoprod Procedure from library `lrcalc.lib` (see lrcalc_lib). Usage: LRcoprod(z); z list of integers (partition) Return: list of lists Purpose: computes the pairs of partitions x and y for which the Littlewood-Richardson coefficient c^z_{x,y} is non-zero together with that coefficient Note: Example:
    LIB "lrcalc.lib";
    // Compute the pairs of partitions x and y for which the Littlewood-Richardson
    // coefficient c^z_{x,y} is non-zero together with that coefficient
    // for z= (3, 2, 1)
    list z = 3, 2, 1;
    LRcoprod(z);

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