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

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

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

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

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