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

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

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

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

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