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

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

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

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

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