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