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