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

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

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

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

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