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

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

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

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

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