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