def test_bell_14(self): self.assertEqual(190899322, combinatorics.bell_number(14))
def test_bell_7(self): self.assertEqual(877, combinatorics.bell_number(7))
def test_bell_3(self): self.assertEqual(5, combinatorics.bell_number(3))
def test_bell_4(self): self.assertEqual(15, combinatorics.bell_number(4))
def test_bell_base(self): self.assertEqual(1, combinatorics.bell_number(0)) self.assertEqual(1, combinatorics.bell_number(1))