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

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

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

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

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