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