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

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

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

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

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