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