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

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

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

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

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