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

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

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

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

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