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

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

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

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

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