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

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

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

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

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