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

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

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

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

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