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