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