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