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

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

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

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

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