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

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

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

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

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