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

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

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

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

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