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

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

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

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

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