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

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

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

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

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