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

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

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

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

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