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