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

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

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

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

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