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

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

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

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

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