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

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

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

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

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