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

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

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

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

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