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

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

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

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

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