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

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

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

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

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