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