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

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

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

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

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