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