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

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

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

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

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