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