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

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

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

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

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