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

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

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

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

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