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

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

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

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

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