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