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

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

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

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

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