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

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

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

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

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