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

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

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

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

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