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

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

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

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

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