(0 18 2)(1 8 3)(4 13 11 10 6)(5 20 19)(7 16 14 12 9)(15 21 17)
ALLOWS (11/8)-SEQUENCE
1: (0 5 20)

(0 19 5 18 2)(1 8 3)(4 13 11 10 6)(7 16 14 12 9)(15 21 17)(20)
2: (2 5 18)

(0 19 5)(1 8 3)(2)(4 13 11 10 6)(7 16 14 12 9)(15 21 17)(18)(20)
3: (1 8 3)

(0 19 5)(1)(2)(3)(4 13 11 10 6)(7 16 14 12 9)(8)(15 21 17)(18)(20)
4: (4 13 6)

(0 19 5)(1)(2)(3)(4)(6 11 10)(7 16 14 12 9)(8)(13)(15 21 17)(18)(20)