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