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