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

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

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

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

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