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

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

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

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

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