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

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

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

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

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