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

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

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

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

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