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

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

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

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

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