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

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

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

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

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