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