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

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

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

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

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