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