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

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

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

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

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