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

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

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

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

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