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

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

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

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

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