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