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

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

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

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

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