'Some test sequences for np.bincount()'

def bincount_sequences(self):

    a = [1, 2, 5, 2, 3, 20]
    b = np.array([5, 8, 42, 5])
    c = self.rnd.randint(0, 100, size=300).astype(np.int8)
    return (a, b, c)
