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

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

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

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

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