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