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