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

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

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

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

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