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