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

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

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

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

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