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