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

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

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

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

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