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

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

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

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

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