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

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

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

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

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