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