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