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

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

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

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

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