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

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

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

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

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