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