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