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

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

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

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

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