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

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

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

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

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