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

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

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

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

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