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

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

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

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

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