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

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

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

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

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