def get_ijk_list(m):
    """Form all possible (i, j, k) exponents up to maximum total angular
    momentum m.
    """

    l = []
    for a in range(1, m + 2):
        for b in range(1, a + 1):
            i = m + 1 - a
            j = a - b
            k = b - 1
            l.append([i, j, k])
    return l