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