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