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

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

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

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

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