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