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

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

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

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

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