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