(0 20 1)(2 21 19 15 4)(3 9 5)(6 13 10)(7 16 8)(11 17 12 18 14)
ALLOWS (11/8)-SEQUENCE
1: (0 11 17)
(0 12 18 14 11 20 1)(2 21 19 15 4)(3 9 5)(6 13 10)(7 16 8)(17)
2: (12 18 20)
(0 12 1)(2 21 19 15 4)(3 9 5)(6 13 10)(7 16 8)(11 20 14)(17)(18)
3: (15 21 19)
(0 12 1)(2 21 4)(3 9 5)(6 13 10)(7 16 8)(11 20 14)(15)(17)(18)(19)
4: (11 20 14)
(0 12 1)(2 21 4)(3 9 5)(6 13 10)(7 16 8)(11)(14)(15)(17)(18)(19)(20)