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