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