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