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

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

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

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

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