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