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

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

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

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

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