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

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

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

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

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