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