(0 18 3)(1 15 2)(4 10 8)(5 12 7)(6 19 17)(9 14 11)(13 20 16)
ALLOWS (11/8)-SEQUENCE
1: (6 15 17)
(0 18 3)(1 15 19 17 2)(4 10 8)(5 12 7)(6)(9 14 11)(13 20 16)
2: (1 15 19)
(0 18 3)(1 17 2)(4 10 8)(5 12 7)(6)(9 14 11)(13 20 16)(15)(19)
3: (0 18 3)
(0)(1 17 2)(3)(4 10 8)(5 12 7)(6)(9 14 11)(13 20 16)(15)(18)(19)
4: (13 20 16)
(0)(1 17 2)(3)(4 10 8)(5 12 7)(6)(9 14 11)(13)(15)(16)(18)(19)(20)