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