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

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

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

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

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