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