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

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

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

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

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