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

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

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

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

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