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

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

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

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

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