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

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

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

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

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