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