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