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

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

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

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

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