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

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

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

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

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