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

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

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

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

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