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

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

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

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

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