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

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

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

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

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